Merge pull request #5371 from ostezer/docs-add-docs-versioning-files-to-gitignore

Docs: Add docs new version files created by `make docs` to .gitignore

.gitignore

@@ -23,3 +23,6 @@ bundles/
 vendor/pkg/
 pyenv
 Vagrantfile
+docs/AWS_S3_BUCKET
+docs/GIT_BRANCH
+docs/VERSION