Add github action

.github/workflows/gitbuilding.yml

@@ -0,0 +1,26 @@
+
+name: Deploy Gitbuilding Project to Github Pages
+
+on: [push]
+
+jobs:
+  build_and_deploy:
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+      - name: Install Python 3
+        uses: actions/setup-python@v1
+        with:
+          python-version: "3.7"
+      - name: Build
+        run: |
+          pip install gitbuilding
+          gitbuilding build-html
+      - name: Deploy
+        uses: JamesIves/github-pages-deploy-action@3.7.1
+        with:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          BRANCH: master
+          FOLDER: _site/
+          # Automatically remove deleted files from the deploy branch
+          CLEAN: false