[Fix] Update Changelog (#553)

Author: ajanikow

CHANGELOG.md

@@ -1,6 +1,8 @@
 # Change Log
 
 ## [master](https://github.com/arangodb/kube-arangodb/tree/master) (N/A)
+
+## [1.0.1](https://github.com/arangodb/kube-arangodb/tree/1.0.1) (2020-04-16)
 - Added additional checks in UpToDate condition
 - Added extended Rotation check for Cluster mode
 - Removed old rotation logic (rotation of ArangoDeployment may be enforced after Operator upgrade)