workflow fix

.github/workflows/docu.yml

@@ -10,18 +10,22 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - uses: actions/setup-node@v3
+      - uses: actions/setup-node@v3  
         with:
           node-version: 20
           cache: npm
+          cache-dependency-path: docs/package-lock.json
 
       - name: Install dependencies
+        working-directory: ./docs
         run: npm ci
+
       - name: Build website
+        working-directory: ./docs
         run: npm run build
 
       - name: Deploy to GitHub Pages
         uses: peaceiris/actions-gh-pages@v3
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
-          publish_dir: ./build
+          publish_dir: ./docs/build