README: Add note about copying default rules into config file (#96)

README.md

@@ -193,8 +193,6 @@ This has whitelist from stdin
 
 ### Rules
 
-A set of default rules is provided in [`pkg/rule/default.yaml`](https://github.com/get-woke/woke/blob/main/pkg/rule/default.yaml).
-
 Configure your custom rules config in `.woke.yaml` or `.woke.yml`. `woke` uses the following precedence order. Each item takes precedence over the item below it:
 
 - `current working directory`
@@ -222,6 +220,10 @@ rules:
     #   include_note: false
 ```
 
+A set of default rules is provided in [`pkg/rule/default.yaml`](https://github.com/get-woke/woke/blob/main/pkg/rule/default.yaml).
+
+**NOTE: if you copy these rules into your config file, be sure to put them under the `rules:` key.**
+
 #### Options
 
 You can configure options for each rule. Add an `options` key to your rule definition to customize.