Revert "CI: Temporarily disabled docs deployment since base repo is a…

… fork"

This reverts commit 1e1c96e.

.github/workflows/documentation.yml

@@ -36,14 +36,12 @@ jobs:
         make -C docs clean
         make -C docs html
         python docs/update_links.py
-
-    # Disable docs deployment for now as we're in psydac fork repo
-    # - name: Setup Pages
-    #   uses: actions/configure-pages@v3
-    # - name: Upload artifact
-    #   uses: actions/upload-pages-artifact@v1
-    #   with:
-    #     path: 'docs/build/html'
+    - name: Setup Pages
+      uses: actions/configure-pages@v3
+    - name: Upload artifact
+      uses: actions/upload-pages-artifact@v1
+      with:
+        path: 'docs/build/html'
 
   deploy_docs:
     if: github.event_name != 'pull_request'