docs(vitepress): add github pages step

Author: sfxcode

.github/workflows/deploy.yml

@@ -50,4 +50,11 @@ jobs:
           commit_message: 'docs: update CHANGELOG.md for ${{ github.ref_name }} [skip ci]'
           file_pattern: CHANGELOG.md
 
+      - name: Deploy
+        uses: peaceiris/actions-gh-pages@v3
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: docs/.vitepress/dist
+          # cname: example.com # if wanna deploy to custom domain
+