Update README.md

-fix device mode description

README.md

@@ -1,15 +1,17 @@
 # Analytics-Swift Localytics
 
-Add Localytics session tracking support to your applications via this plugin for [Analytics-Swift](https://github.com/segmentio/analytics-swift)
-
-Note that this plugin simply adds session data for Localytics, and events are sent via Cloud Mode.
+Add Localytics Device Mode support to your applications via this plugin for [Analytics-Swift](https://github.com/segmentio/analytics-swift)
 
 ## Adding the dependency
 
+***Note:*** the `Localytics` library itself will be installed as an additional dependency.
+
 ### via Xcode
-In the Xcode `File` menu, click `Add Packages`.  You'll see a dialog where you can search for Swift packages.  In the search field, enter the URL to this repo.
+In the Xcode `File` menu, click `Add Packages`.  You'll see a dialog where you can search for Swift packages.  In the search field, enter the URL for this repo:
 
+```
 https://github.com/segment-integrations/analytics-swift-localytics
+```
 
 You'll then have the option to pin to a version, or specific branch, as well as which project in your workspace to add it to.  Once you've made your selections, click the `Add Package` button.  
 
@@ -43,7 +45,7 @@ let analytics = Analytics(configuration: Configuration(writeKey: "<YOUR WRITE KE
                     .trackApplicationLifecycleEvents(true))
 analytics.add(plugin: LocalyticsDestination())
 ```
-Your events will now be given Localytics session data and start flowing to Localytics via Cloud Mode.
+Your events will now be given Localytics session data and start flowing to Localytics via Device Mode.
 
 
 ## Support