test again to really be sure. add date to readme

.github/workflows/deploy-gh-pages.yml

@@ -67,6 +67,7 @@ jobs:
           cd gh-pages
           git config --global user.name 'github-actions'
           git config --global user.email '[email protected]'
+          date >> README.md
           git add .
           git remote add sshtarget [email protected]:zml/docs
           git commit -m "Update GitHub Pages"