Swapped video, fixed vale errors (#967)

docs/data/sources/google-tag-manager-server.md

@@ -40,14 +40,14 @@ Create tags for your amplitude browser SDK tracking. Click the `New` button to c
 
 ##### API Key
 
-Copy your amplitude project API Key in the API Key field. For EU residency, your project API Key is under [analytics.eu.amplitude.com](https://analytics.eu.amplitude.com/). Each project has different API Key, please make sure you are copy the API Key from the right project. Go to **Settings -> Projects -> click the right project name from the list** to find your project API Key. Check [here](https://www.docs.developers.amplitude.com/analytics/find-api-credentials/) for more details.
+Copy your amplitude project API Key in the API Key field. For EU residency, your project API Key is under [analytics.eu.amplitude.com](https://analytics.eu.amplitude.com/). Each project has different API Key, make sure you are copy the API Key from the right project. Go to **Settings -> Projects -> click the right project name from the list** to find your project API Key. Check [here](https://www.docs.developers.amplitude.com/analytics/find-api-credentials/) for more details.
 
 ##### Hide User IP Address
 
-Check this box to make sure that the user's IP address is not forwarded to Amplitude servers.
+Check this box to make sure that the user's IP address isn't forwarded to Amplitude servers.
 
-- Check `Hide User IP Address` - We will use the IP collected from the HTTP request header, which is the IP from your server.
-- Uncheck `Hide User IP Address` - We will get the IP address where the request originated, using [getRemoteAddress](https://developers.google.com/tag-platform/tag-manager/server-side/api#getremoteaddress) method. 
+- Check `Hide User IP Address` - Amplitude uses the IP collected from the HTTP request header, which is the IP from your server.
+- Un-check `Hide User IP Address` - Amplitude gets the IP address where the request originated, using [getRemoteAddress](https://developers.google.com/tag-platform/tag-manager/server-side/api#getremoteaddress) method. 
 
 ##### EU Data Residency
 
@@ -63,97 +63,97 @@ The configurations related to the Event payload.
 
 In the table, add rows for each event name you want to map to an Amplitude Event Type. If you check `Block events that are not mapped`, only Event Data keys included in this table will be sent with the Amplitude request, other events not included in the table will be aborted.
 
-| <div class="big-column">Name</div>  | Description |
-| --- | --- |
-| `Event Name` | Required. `string`.  The `event_name` this tag has received. |
-| `Send As Event Type` | Required. `string`. The event type you want to map the event name to. This will be the name shown in Amplitude dashboard. |
+| <div class="big-column">Name</div> | Description                                                                                                               |
+| ---------------------------------- | ------------------------------------------------------------------------------------------------------------------------- |
+| `Event Name`                       | Required. `string`.  The `event_name` this tag has received.                                                              |
+| `Send As Event Type`               | Required. `string`. The event type you want to map the event name to. This will be the name shown in Amplitude dashboard. |
 
 ##### Map Event Properties
 
 Map keys in the Event Data object to event properties you want to send to Amplitude. If you don't specify an Event Property name, the Event Data key will be used instead.
 
-| <div class="big-column">Name</div>  | Description |
-| --- | --- |
-| `Event Data Key` | Required. `string`.  They key, value pair in the Event Data object you want to include as an event property in the Amplitude event payload. |
-| `Send As Event Property` | Optional. `string`.  This event property name, will be shown in Amplitude dashboard. If it's empty, `Event Data Key` will be used as event type instead. |
+| <div class="big-column">Name</div> | Description                                                                                                                                              |
+| ---------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| `Event Data Key`                   | Required. `string`.  They key, value pair in the Event Data object you want to include as an event property in the Amplitude event payload.              |
+| `Send As Event Property`           | Optional. `string`.  This event property name, will be shown in Amplitude dashboard. If it's empty, `Event Data Key` will be used as event type instead. |
 
 ##### Add Event Properties
 
 Use this table to add completely new event properties to the hit sent to Amplitude servers. Each property needs a key and a value.
 
-| <div class="big-column">Name</div>  | Description |
-| --- | --- |
-| `Event Property Key` | Required. `string`.  The `event_name` in the Event Data object. |
-| `Event Property Value` | Optional. `string`. The value of the event property key. |
+| <div class="big-column">Name</div> | Description                                                     |
+| ---------------------------------- | --------------------------------------------------------------- |
+| `Event Property Key`               | Required. `string`.  The `event_name` in the Event Data object. |
+| `Event Property Value`             | Optional. `string`. The value of the event property key.        |
 
 #### User Property Configuration
 
 ![Server Tag User Property Configuration](../../assets/images/gtm/gtm-server-user-property-configuration.png)
 
 ##### Automatically Track UTM Parameters
 
-We parse the `search_parameter` using [getEventData('page_location')](https://developers.google.com/tag-platform/tag-manager/server-side/api#geteventdata) for tracking the UTM parameters. 
+Amplitude parses the `search_parameter` using [getEventData('page_location')](https://developers.google.com/tag-platform/tag-manager/server-side/api#geteventdata) for tracking the UTM parameters. 
 
 Check the box to collect all UTM parameters, including `utm_source`, `utm_medium`, `utm_campaign`, `utm_term`, `utm_content`. All those values will be sent with other user properties along with the event been tracked.
 
 ##### Map User Properties
 
 Map keys in the Event Data object to user properties you want to send to Amplitude. If you don't specify a User Property name, the Event Data key will be used instead. Only Event Data keys included in this table will be sent with the Amplitude request.
 
-| <div class="big-column">Name</div>  | Description |
-| --- | --- |
-| `Event Data Key` | Required. `string`. They key in the Event Data object you want to include as a user property to send to Amplitude. |
-| `Send As User Property` | Optional. `string`. The user property name you want to. This will be the name shown in Amplitude dashboard. If it's empty, `Event Data Key` will be used as the user property key instead. |
+| <div class="big-column">Name</div> | Description                                                                                                                                                                                |
+| ---------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
+| `Event Data Key`                   | Required. `string`. They key in the Event Data object you want to include as a user property to send to Amplitude.                                                                         |
+| `Send As User Property`            | Optional. `string`. The user property name you want to. This will be the name shown in Amplitude dashboard. If it's empty, `Event Data Key` will be used as the user property key instead. |
 
 ##### Add User Properties
 
 Use this table to add completely new event properties to the hit sent to Amplitude servers. Each property needs a key and a value.
 
-| <div class="big-column">Name</div>  | Description |
-| --- | --- |
-| `User Property Key` | Required. `string`. They key in the Event Data object you want to include as a user property to send to Amplitude. |
-| `User Property Value` | Required. `string`. The value of a specific user property key. |
+| <div class="big-column">Name</div> | Description                                                                                                        |
+| ---------------------------------- | ------------------------------------------------------------------------------------------------------------------ |
+| `User Property Key`                | Required. `string`. They key in the Event Data object you want to include as a user property to send to Amplitude. |
+| `User Property Value`              | Required. `string`. The value of a specific user property key.                                                     |
 
 #### Additional Properties
 
 ![Server Tag Additional Properties](../../assets/images/gtm/gtm-server-additional-properties.png)
 
 Use this feature to add extra event properties. In case of any overlap, the new addition will replace the previous value. Each property needs a key and a value.
 
-| <div class="big-column">Name</div>  | Description |
-| --- | --- |
-| `Additional Property Key` | Required. `string`. They key of the event property. |
-| `Additional Property Value` | Required. `string`. The property value of the property key. |
+| <div class="big-column">Name</div> | Description                                                 |
+| ---------------------------------- | ----------------------------------------------------------- |
+| `Additional Property Key`          | Required. `string`. They key of the event property.         |
+| `Additional Property Value`        | Required. `string`. The property value of the property key. |
 
 ### Other info come along with tracking an event
 
-| <div class="big-column">Name</div>  | Description | Default Value |
-| --- | --- | --- |
-| `user_id` |  The user Id.  | The value of `user_id` or `x-ga-mp2-user_properties.user_id` from the Event Object or `undefined`. |
-| `device_id` | The device Id. | The value of `client_id` from the Event Object. |
-| `time` | The a number that represents the current time in milliseconds. | [More details](https://developers.google.com/tag-platform/tag-manager/server-side/api#gettimestampmillis). |
-| `session_id` | The session Id. |  The integer value of `ga_session_id` in Event Object + `000` |
-| `insert_id` | The insert Id for deduplication purpose in Amplitude Server. | `device_id` + the eventName in Event Object + `time`. |
-| `library` | The library for identifying the source of an event in Amplitude. | `S-GTM` | 
+| <div class="big-column">Name</div> | Description                                                      | Default Value                                                                                              |
+| ---------------------------------- | ---------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------- |
+| `user_id`                          | The user Id.                                                     | The value of `user_id` or `x-ga-mp2-user_properties.user_id` from the Event Object or `undefined`.         |
+| `device_id`                        | The device Id.                                                   | The value of `client_id` from the Event Object.                                                            |
+| `time`                             | The a number that represents the current time in milliseconds.   | [More details](https://developers.google.com/tag-platform/tag-manager/server-side/api#gettimestampmillis). |
+| `session_id`                       | The session Id.                                                  | The integer value of `ga_session_id` in Event Object + `000`                                               |
+| `insert_id`                        | The insert Id for deduplication purpose in Amplitude Server.     | `device_id` + the `eventName` in Event Object + `time`.                                                      |
+| `library`                          | The library for identifying the source of an event in Amplitude. | `S-GTM`                                                                                                    |
 
 ### Define your trigger - Triggering
 
-All tags fire based on events. Anytime Google Tag Manager registers an event, event triggers are evaluated and tags are fired accordingly. The triggers in Server Tag is limited compared with Web container. The following triggers provided by GTM currently. Please check the GTM docs for more updates.
+All tags fire based on events. Anytime Google Tag Manager registers an event, event triggers are evaluated and tags are fired accordingly. The triggers in Server Tag is limited compared with Web container. The following triggers provided by GTM currently.
 
 - Custom Trigger - When a Server Container Client accepts the incoming request, processes it, and makes its data available in the container for other tags, you can use a Custom trigger to fire a tag. You can choose if you want to fire the tag on all events or on a specific event.
-- Page View Trigger - The trigger will be activated if the incoming request was processed by a client and generated a page_view event. That event should be visible in the preview mode of server GTM.
+- Page View Trigger - The trigger will be activated if the incoming request was processed by a client and generated a `page_view` event. That event should be visible in the preview mode of server GTM.
 - Custom Event Trigger - Custom event trigger works in the exact same way as the Page View trigger. The only difference is that you can pick the name of the event on which you want to fire.
 
 ## Common Issues
 
-### Why I cannot find Amplitude Analytics in the GTM Gallery
+### Why can't I find Amplitude Analytics in the GTM Gallery?
 
-Please make sure you have selected a server container. Server-side template will only exist in server container gallery. 
+Make sure you have selected a server container. Server-side template will only exist in server container gallery. 
 
 ## Video Tutorial
 
 This video tutorial walks through the implementation basics. 
 
-<script src="https://fast.wistia.com/embed/medias/n337njhoot.jsonp" async></script><script src="https://fast.wistia.com/assets/external/E-v1.js" async></script><div class="wistia_responsive_padding" style="padding:56.25% 0 0 0;position:relative;"><div class="wistia_responsive_wrapper" style="height:100%;left:0;position:absolute;top:0;width:100%;"><div class="wistia_embed wistia_async_n337njhoot videoFoam=true" style="height:100%;position:relative;width:100%"><div class="wistia_swatch" style="height:100%;left:0;opacity:0;overflow:hidden;position:absolute;top:0;transition:opacity 200ms;width:100%;"><img src="https://fast.wistia.com/embed/medias/n337njhoot/swatch" style="filter:blur(5px);height:100%;object-fit:contain;width:100%;" alt="" aria-hidden="true" onload="this.parentNode.style.opacity=1;" /></div></div></div></div>
+<script src="https://fast.wistia.com/embed/medias/hznp0gi3gj.jsonp" async></script><script src="https://fast.wistia.com/assets/external/E-v1.js" async></script><div class="wistia_responsive_padding" style="padding:56.25% 0 0 0;position:relative;"><div class="wistia_responsive_wrapper" style="height:100%;left:0;position:absolute;top:0;width:100%;"><div class="wistia_embed wistia_async_hznp0gi3gj videoFoam=true" style="height:100%;position:relative;width:100%"><div class="wistia_swatch" style="height:100%;left:0;opacity:0;overflow:hidden;position:absolute;top:0;transition:opacity 200ms;width:100%;"><img src="https://fast.wistia.com/embed/medias/hznp0gi3gj/swatch" style="filter:blur(5px);height:100%;object-fit:contain;width:100%;" alt="" aria-hidden="true" onload="this.parentNode.style.opacity=1;" /></div></div></div></div>
 
-Please check [here](https://developers.google.com/tag-platform/tag-manager/server-side/api) for more details related to server-gtm API. 
+See the [GTM Server-side tagging API](https://developers.google.com/tag-platform/tag-manager/server-side/api) documentation for more details related to server-gtm API.