fix GitHub action generating documentation

closes #447

Author: fabapp2

.github/workflows/build-asciidoc.yml

@@ -23,7 +23,7 @@ jobs:
       - name: Deploy docs to ghpages
         uses: peaceiris/actions-gh-pages@v3
         with:
-          github_token: ${{ secrets.GITHUB_TOKEN }}
+          github_token: ${{ secrets.ACTIONS_DEPLOY_KEY }}
           publish_branch: gh-pages
           publish_dir: ./docs