docs: updated changelog

CHANGELOG.md

@@ -7,8 +7,9 @@
 * **Prometheus**: Table columns order now changes when rearrange queries [#11690](https://github.com/grafana/grafana/issues/11690), thx [@mtanda](https://github.com/mtanda)
 * **Variables**: Fix variable interpolation when using multiple formatting types [#11800](https://github.com/grafana/grafana/issues/11800), thx [@svenklemm](https://github.com/svenklemm)
 * **Dashboard**: Fix date selector styling for dark/light theme in time picker control [#11616](https://github.com/grafana/grafana/issues/11616)
-* **Discord**: Alert notification channel type for Discord, [#7964](https://github.com/grafana/grafana/issues/7964) thx [@jereksel](https://github.com/jereksel), 
-* **InfluxDB**: Support SELECT queries in templating query, [5013](https://github.com/grafana/grafana/issues/5013)
+* **Discord**: Alert notification channel type for Discord, [#7964](https://github.com/grafana/grafana/issues/7964) thx [@jereksel](https://github.com/jereksel),
+* **InfluxDB**: Support SELECT queries in templating query, [#5013](https://github.com/grafana/grafana/issues/5013)
+* **Dashboard**: JSON Model under dashboard settings can now be updated & changes saved, [#1429](https://github.com/grafana/grafana/issues/1429), thx [@jereksel](https://github.com/jereksel)
 
 # 5.1.1 (2018-05-07)