build: add github pages publish action

.github/workflows/deployment.yml

@@ -0,0 +1,41 @@
+name: Deploy to GitHub Pages
+
+on:
+  push:
+    branches:
+      - main # Set a branch to trigger deployment
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout Source Code
+        uses: actions/checkout@v3
+        with:
+          persist-credentials: false
+
+      - name: Use Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: "16" # Set the Node.js version
+
+      - name: Cache Node Modules
+        uses: actions/cache@v3
+        with:
+          path: ~/.npm
+          key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-node-
+
+      - name: Install Dependencies
+        run: npm install
+
+      - name: Build Website
+        run: npm run build
+
+      - name: Deploy to GitHub Pages
+        uses: peaceiris/actions-gh-pages@v3
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: ./build # Replace with your Docusaurus build output directory