setting path

Author: valentina-s

.github/workflows/deploy-book.yml

@@ -52,7 +52,7 @@ jobs:
     - name: Upload artifact
       uses: actions/upload-pages-artifact@v2
       with:
-        path: "_build/html"
+        path: "docs/_build/html"
 
     # Deploy the book's HTML to GitHub Pages
     - name: Deploy to GitHub Pages