changelog(): updated with feature links in annotations

CHANGELOG.md

@@ -7,6 +7,7 @@
 * **Snapshots UI**: Dashboard snapshots list can be managed through UI, closes[#1984](https://github.com/grafana/grafana/issues/1984)
 * **Prometheus**: Prometheus annotation support, closes[#2883](https://github.com/grafana/grafana/pull/2883)
 * **Cli**: New cli tool for downloading and updating plugins
+* **Annotations**: Annotations can now contain links that can be clicked (you can navigate on to annotation popovers), closes [#1588](https://github.com/grafana/grafana/issues/1588)
 
 ### Breaking changes
 * **Plugin API**: Both datasource and panel plugin api (and plugin.json schema) have been updated, requiring an update to plugins. See [plugin api](https://github.com/grafana/grafana/blob/master/public/app/plugins/plugin_api.md) for more info.