Added a release notes file

RELEASE_NOTES.md

@@ -0,0 +1,24 @@
+## [Version 0.7] - 2023-09-20
+
+### Docker Tags
+- codiumai/pr-agent:0.7
+- codiumai/pr-agent:0.7-github_app
+- codiumai/pr-agent:0.7-bitbucket-app
+- codiumai/pr-agent:0.7-gitlab_webhook
+- codiumai/pr-agent:0.7-github_polling
+- codiumai/pr-agent:0.7-github_action
+ 
+### Added
+- 
+
+### Changed
+- 
+
+### Deprecated
+- 
+
+### Removed
+- 
+
+### Fixed
+-