adding link to examples

Author: ppisljar

src/plugins/ui_actions/README.asciidoc

@@ -10,6 +10,10 @@ An API for:
 - executing `actions` attached to a given `trigger`.
 - exposing a context menu for the user to choose the appropriate action when there are multiple actions attached to a single trigger.
 
+=== Examples
+
+https://github.com/elastic/kibana/blob/master/examples/ui_action_examples/README.md[ui_action examples]
+
 === API Docs
 
 ==== Server API