fix; gh action

Author: shreshthtuli

.github/workflows/deploy-book.yml

@@ -30,10 +30,16 @@ jobs:
           python-version: "3.10"
 
       - name: Install Jupyter Book
-        run: pip install jupyter-book
+        run: |
+          python -m pip install --upgrade pip
+          python -m pip install "jupyter-book"
 
       - name: Build Jupyter Book site
-        run: jb build .
+        run: |
+          jb build . --path-output _build
+
+      - name: Ensure GitHub Pages compatibility
+        run: touch _build/html/.nojekyll
 
       - name: Copy assets to build folder
         run: |