Revise check-action-references

actions/check-action-references/README.md

@@ -1,6 +1,6 @@
 # check-action-references
 
-Prevents `uses:` directives from referencing other GitHub actions, within the same repository, not on the _default_ branch.
+Prevents `uses:` directives from referencing other GitHub actions, within the same repository, not on the default branch.
 
 ## Example
 
@@ -11,13 +11,13 @@ steps:
 
 ## How it works
 
-When developing new actions, you could need to reference one from another; since both actions temporarily reside in a new Git branch, you'll need `@bX.Y.Z` in the `use:` directive.
+When developing new actions in a repository acting as a library for GitHub Actions, you could need to reference one action from another; since both actions temporarily reside in a new Git branch, you'll have to add `@bX.Y.Z` to the `use:` directive.
 
-This action is designed for pull request validation workflows - as it ensures that all the above `@` tags have been removed between actions belonging to the same repository: only references to the default branch are allowed.
+This action is designed for pull request validation workflows - as it ensures that all the above `@` tags have been removed between actions belonging to the same repository: only references to the default branch of the repository are allowed.
 
 ## Requirements
 
-- The check is only performed on [composite GitHub actions](https://docs.github.com/en/actions/sharing-automations/creating-actions/creating-a-composite-action), written in files having `.yml` extension.
+- The check is only performed on [composite GitHub actions](https://docs.github.com/en/actions/sharing-automations/creating-actions/creating-a-composite-action), written in files having `.yml` extension; workflows in the `.github/workflows` directories are always excluded.
 
 ## Inputs