chore: update README.md

Author: lcpojr

README.md

@@ -35,7 +35,7 @@ ResourceManager.Repo.all(ResourceManager.Identities.Schemas.ClientApplication) |
 
 ### Making requests
 
-Check out the [rest api guide](https://github.com/lcpojr/watcher_ex/blob/master/apps/rest_api/README.md) on the specific application `README.md`.
+Check out the [rest api guide](https://github.com/lcpojr/watcher_ex/blob/master/apps/rest_api/README.md) on the specific application `README.md` or you can check it out on or live example [here](https://watcherex.gigalixirapp.com/api/v1/swagger/index.html).
 
 ### Testing