publish documentations dir in gh-action

Signed-off-by: Yilun <zyl.skysniper@gmail.com>

Author: yilunzhang

.github/workflows/deploy.yml

@@ -31,4 +31,4 @@ jobs:
       uses: peaceiris/actions-gh-pages@v3
       with:
         github_token: ${{ secrets.GITHUB_TOKEN }}
-        publish_dir: ./website/build
+        publish_dir: ./website/build/documentations