add branch param to docs

Author: repo-visualizer

README.md

@@ -36,6 +36,12 @@ The commit message to use when updating the diagram. Useful for skipping CI. For
 
 Default: `Repo visualizer: updated diagram`
 
+## `branch`
+
+The branch name to push the diagram to (branch will be created if it does not yet exist).
+
+For example: `diagram`
+
 ## Example usage
 
 You'll need to run the `actions/checkout` Action beforehand, to check out the code.

action.yml

@@ -15,7 +15,7 @@ inputs:
     description: "The commit message to use when updating the diagram. Default: Repo visualizer: updated diagram"
     required: false
   branch:
-    description: "If you want to push the diagram to a different branch (branch will be created if it does not exist)"
+    description: "The branch name to push the diagram to (branch will be created if it does not yet exist). For example: diagram"
     required: false
 runs:
   using: "node12"