docs: add note about closing #4079

CHANGELOG.md

-# 4.1-beta (unreleased)
+# 4.1-beta1 (2016-12-20)
 
 ### Enhancements
 * **Postgres**: Add support for Certs for Postgres database [#6655](https://github.com/grafana/grafana/issues/6655)
@@ -17,6 +17,7 @@
 * **Alerting**: Adds OK as no data option. [#6866](https://github.com/grafana/grafana/issues/6866)
 * **Alert list**: Order alerts based on state. [#6676](https://github.com/grafana/grafana/issues/6676)
 * **Alerting**: Add api endpoint for pausing all alerts. [#6589](https://github.com/grafana/grafana/issues/6589)
+* **Panel**: Added help text for panels. [#4079](https://github.com/grafana/grafana/issues/4079), thx [@utkarshcmu](https://github.com/utkarshcmu)
 
 ### Bugfixes
 * **API**: HTTP API for deleting org returning incorrect message for a non-existing org [#6679](https://github.com/grafana/grafana/issues/6679)