Merge pull request #64 from craigatgoogle/docs/updated-gcs-docs

Updated the branching model and community doc refs

CONTRIBUTING.md

@@ -28,6 +28,13 @@ You generally only need to submit a CLA once, so if you've already submitted one
 (even if it was for a different project), you probably don't need to do it
 again.
 
+## Branching Model
+
+This repository uses the [Gitflow](https://www.atlassian.com/git/tutorials/comparing-workflows/gitflow-workflow)
+branching model.
+
+Use of the [git flow](https://github.com/nvie/gitflow) git extension is recommended.
+
 ## Code reviews
 
 All submissions, including submissions by project members, require review. We

README.md

@@ -32,6 +32,13 @@ See [Plugin Source Build Installation](docs/source_build_installation.md) to bui
 ## Feature requests and bug reports
 Please file feature requests and bug reports as [GitHub Issues](https://github.com/jenkinsci/google-storage-plugin/issues).
 
+## Community
+
+The GCP Jenkins community uses the **#gcp-jenkins** slack channel on
+[https://googlecloud-community.slack.com](https://googlecloud-community.slack.com)
+to ask questions and share feedback. Invitation link available
+[here](https://join.slack.com/t/googlecloud-community/shared_invite/enQtNDI2NjAyODQ4NzA5LThlOGVhMzUyNDUyNmVmNTQ5YzMxYmYxNDk1YjdmZjU4ZjBiYmU1OGEzYWE2MWY1NWY4NTQ1NjAwOWRlN2ZlN2I).
+
 ## License
 See [LICENSE](LICENSE)