add back the workflow again

Author: younghyopark

.github/workflows/docs.yml

@@ -0,0 +1,41 @@
+name: Build and Deploy Documentation
+
+on:
+  push:
+    branches:
+      - main
+
+permissions:
+  contents: write
+
+jobs:
+  build-and-deploy:
+    runs-on: ubuntu-latest
+    
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+      
+    - name: Set up Python
+      uses: actions/setup-python@v5
+      with:
+        python-version: '3.10'
+        
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install sphinx sphinx-rtd-theme
+        pip install -e .
+        
+    - name: Build documentation
+      run: |
+        chmod +x build.sh
+        ./build.sh
+        
+    - name: Deploy to GitHub Pages
+      uses: peaceiris/actions-gh-pages@v4
+      with:
+        github_token: ${{ secrets.GITHUB_TOKEN }}
+        publish_dir: ./docs
+        publish_branch: gh-pages
+        force_orphan: true