dynamic Resources: China branding, docs

1. dynamic resources commands in package.json are not china-branded: https://github.com/aws/aws-toolkit-vscode/blob/b5af3c53d6720bca08ad603c5e08d30ed5b63804/package.json#L2066-L2071
- solution: add `cloud9.cn` items
2. Resources is not mentioned in the "quickstart"

Start with package.json lines 2066-2071 to inspect the dynamic Resources commands and confirm the existing branding pattern. Then locate the quickstart documentation, add the Resources mention there, and verify that the commands include the requested cloud9.cn items and the quickstart covers Resources.

Written by the indexing model from the issue text.