- follow-up to 9ca2be836d6a
- the branches/ files are _prefix_ matched against PR target branches
- "The name must match the first level of the branch name"
- see <https://docs.microsoft.com/en-us/azure/devops/repos/git/pull-request-templates#branch-specific-pull-request-templates>
- note: these templates are only read from the default branch
nit: provide default PR template for the odd case of an internal PR targeting 'main' or a temporary (feature) branch
- see <https://docs.microsoft.com/en-us/azure/devops/repos/git/pull-request-templates#default-pull-request-templates>
- keep minimal.md PR template separate from the default
- this template helps after removing servicing template for internal `tell-mode` PRs
- default PR template can't be used as an additional PR template
- see <https://docs.microsoft.com/en-us/azure/devops/repos/git/pull-request-templates#additional-pull-request-templates>
- add eng/PatchConfig.props reminder for release/2.1
- move related issue into **Description**
- address Markdown lint complaints
- create similar templates for internal PRs
- include new .azuredevops folder in CODEOWNERS