Add publishing step

Author: Pike

.github/workflows/documentation.yml

@@ -40,3 +40,23 @@ jobs:
         with:
           name: html
           path: _build/python-fluent
+
+  publish:
+    name: publish
+    needs: [build]
+    # if: github.event_name == 'push'
+    runs-on: ubuntu-latest
+    steps:
+      - name: Download artifact
+        uses: actions/download-artifact@v2
+        with:
+          name: html
+          path: _build
+      - name: Deploy 🚀
+        uses: JamesIves/github-pages-deploy-action@3.7.1
+        with:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          BRANCH: gh-pages # The branch the action should deploy to.
+          BASE_BRANCH: ${{ github.ref }} # What we're deploying.
+          FOLDER: _build # The folder the action should deploy.
+          CLEAN: true # Automatically remove deleted files from the deploy branch