update CI

.github/workflows/ci.yml

@@ -1,3 +1,30 @@
+name: Deploy MkDocs Site
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Set up Python
+      uses: actions/setup-python@v3
+      with:
+        python-version: '3.9'
+
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install mkdocs-material
+
+    - name: Build the MkDocs Site
+      run: mkdocs build
+
     - name: Deploy to GitHub Pages
       uses: peaceiris/actions-gh-pages@v3
       with: