Add release notes

Closes-Bug: CLOUDOPS-761
Change-Id: If1aa57c0e1617a312f36e52c503a40b5ee166c91
(cherry picked from commit 7607e5a65486453e80b1a7a042051df61e672301)
diff --git a/.gitignore b/.gitignore
index d362686..2ad4866 100644
--- a/.gitignore
+++ b/.gitignore
@@ -24,6 +24,7 @@
 doc/build
 collections/
 *.egg-info
+CHANGELOG.rst
 
 ## Editors
 .idea