Add Clubhouse title and body customization templates

v1.9

Merge pull request #2 from xyngular/feature/customize-clubhouse-story…

Add only-users feature

feat: Add only-users functionality (#6)

* feat: added only-users list

Adding only-users list that allows us to set the list of users to create an automated Clubhouse story for. For example for dependabot PRs for which we want to track in our sprint cycles.