chore(settings): update config values

Changes to be committed:
modified:   .github/settings.yml

.github/settings.yml

@@ -1,5 +1,6 @@
 repository:
   # See https://docs.github.com/en/free-pro-team@latest/rest/reference/repos#edit for all available settings.
+  # See https://github.com/apps/settings for app settings
 
   # A short description of the repository that will show up on GitHub
   description: Custom element to illustrate status, show count, convey selections
@@ -22,6 +23,9 @@ repository:
   # Updates the default branch for this repository.
   default_branch: main
 
+  # Either `true` to enable automatic deletion of branches on merge, or `false` to disable
+  delete_branch_on_merge: true
+
   # Either `true` to allow squash-merging pull requests, or `false` to prevent
   # squash-merging.
   allow_squash_merge: false
@@ -61,6 +65,8 @@ branches:
       enforce_admins: false
       # Required. Restrict who can push to this branch. Team and user restrictions are only available for organization-owned repositories. Set to null to disable.
       restrictions: null
+      # Prevent merge commits from being pushed to matching branches
+      required_linear_history: true
 
 # Labels: define labels for Issues and Pull Requests
 labels: