doc about the gh-md-toc script

Author: etienne-sf

.github/workflows/wiki_TOC.yml

@@ -32,6 +32,9 @@ jobs:
           ls
           #curl https://raw.githubusercontent.com/ekalinin/github-markdown-toc/master/gh-md-toc -o gh-md-toc
           #chmod a+x gh-md-toc
+          # The ekalinin's github-markdown-toc script is executed directly from the wiki project, as
+          # it has been update to work on the github project.
+          # More info on this page: https://github.com/graphql-java-generator/graphql-maven-plugin-project/wiki/internal_howto_release#howto-update-the-wiki
           ./gh-md-toc --insert --no-backup *.md
       - uses: stefanzweifel/git-auto-commit-action@v4
         with: