Added docs for QC check run

docs/implementation.rst

@@ -76,4 +76,13 @@ Pull request
 Once the issue is created, it triggers the GitHub workflow mentioned above and creates a corresponding pull request
 which should reflect the expected change in the ontology resource based on the commands listed in the issue.
 The title for the pull request generated corresponds to the issue that triggered its generation. If the issue is edited, 
-the same pull request is updated.
+the same pull request is updated.
+
+Trigger QC checks
+"""""""""""""""""
+If the pull request should trigger the GitHub workflow for the ontology repository to run QC checks,
+follow the following steps:
+1. Go to the `Settings` tab => `Secrets and variables` => `Actions` and
+add a new repository secret with the name `GH_TOKEN` and the value of the personal access token.
+For more information on personal access tokens, see `here <https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/managing-your-personal-access-tokens#personal-access-tokens-classic>`_.
+2. The `token: ${{ secrets.GH_TOKEN }}` in the workflow file should be uncommented.