docs: update nav between docs

docs/en/UI/Angular/Environment.md

@@ -102,4 +102,10 @@ export interface RemoteEnv {
   * `overwrite`: Remote `environment` will be used and local environment will be ignored.
   * `customMergeFn`: You can also provide your own merge function as shown in the example. It will take two parameters, `localEnv: Partial<Config.Environment>` and `remoteEnv` and it needs to return a `Config.Environment` object.
 * `method`: HTTP method to be used when retrieving environment config. Default: `GET`
-* `headers`: If extra headers are needed for the request, it can be set through this field.
+* `headers`: If extra headers are needed for the request, it can be set through this field.
+
+
+## What's Next?
+
+* [Service Proxies](./Service-Proxies.md)
+

docs/en/UI/Angular/Migration-Guide-v3.md

@@ -473,5 +473,5 @@ Some interfaces have long been marked as deprecated and now they are removed.
 
 ## What's Next?
 
-* [Service Proxies](./Service-Proxies.md)
+* [Environment](./Environment.md)