add link for bot configuration discussion

.github/workflows/check-and-gen.yml

@@ -94,6 +94,7 @@ jobs:
       - name: Commit and push if documentation changed
         run: |
           if [ -n "$(git status --porcelain)" ]; then
+           # Bot email is configured from: https://github.com/orgs/community/discussions/26560
             git config user.name "github-actions[bot]"
             git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
             git add .