Add 0.1.0 release to CHANGELOG

Author: trotttrotttrott

CHANGELOG.md

@@ -1,5 +1,22 @@
 # Changelog
 
+## 0.1.0 (2020-07-29)
+
+Includes a breaking change for `gauge`. It has been renamed to `gaugePanel` to
+be consistent with the project's panel naming convention.
+
+### Features
+
+* **panel**: Create Stat Panel, Update Gauge Panel
+  ([#242](https://github.com/grafana/grafonnet-lib/pull/242)).
+* **template**: Add adhoc template variable
+  ([#245](https://github.com/grafana/grafonnet-lib/pull/245)).
+
+### Enhancements
+
+* **panel**: Add support for repeat in pie chart panel
+  ([#246](https://github.com/grafana/grafonnet-lib/pull/246)).
+
 ## 0.0.1 (2020-07-06)
 
 The project is almost 3 years old and this is the first official release.