fix directory ownership

Author: casibbald

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

@@ -33,7 +33,7 @@ jobs:
         run: |
             # this is to fix GIT not liking owner of the checkout dir
             chown -R $(id -u):$(id -g) $PWD
-            git config --global --add safe.directory /github/workspace
+            git config --global --add safe.directory /__w/{repo_name}/{repo_name}
       - name: Setup Pages
         uses: actions/configure-pages@v2
       - name: build_and_deploy