add: updated title for working with clusterings and removed extra new line

Author: BeaMarton13

doc/source/community_detection_guide.rst

@@ -184,7 +184,7 @@ This documentation provides an overview of the notebooks available in the commun
               </a>
           </div>
 
-   .. grid-item-card::  Vertex Clustering Object
+   .. grid-item-card::  Working with Clusterings
       :link: community_detection_guide/notebooks/working_with_clusterings
       :link-type: doc
       :class-card: sd-card-hover card-deep-purple 

doc/source/community_detection_guide/notebooks/working_with_clusterings.ipynb

@@ -285,14 +285,6 @@
     "\n",
     "</div>"
    ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "id": "59f748b4-e444-4e60-9aac-dc6292657608",
-   "metadata": {},
-   "outputs": [],
-   "source": []
   }
  ],
  "metadata": {