Fix link to video

Author: GuillaumeBroggi

benchmarks/cfd/mgn_cylinder_flow/mgn_cylinder_flow.ipynb

@@ -7998,10 +7998,10 @@
             "id": "f9335fde",
             "metadata": {},
             "source": [
-                "Let's inspect the result:\n",
+                "Let's inspect the result as saved on Graphorge's main branch:\n",
                 "\n",
                 "<video width=\"800\" controls>\n",
-                "  <source src=\"_assets/cylinder_flow.mp4\" type=\"video/mp4\" onerror=\"this.src='https://github.com/bessagroup/graphorge/tree/main/benchmarks/cfd/mgn_cylinder_flow/_assets/cylinder_flow.mp4';\">\n",
+                "  <source src=\"https://github.com/bessagroup/graphorge/raw/refs/heads/main/benchmarks/cfd/mgn_cylinder_flow/_assets/cylinder_flow.mp4\" type=\"video/mp4\">\n",
                 "</video>"
             ]
         }
@@ -8027,7 +8027,7 @@
             "name": "python",
             "nbconvert_exporter": "python",
             "pygments_lexer": "ipython3",
-            "version": "3.12.3"
+            "version": "3.11.9"
         },
         "title": "Re-implementation of MeshGraphNet for turbulent flow around a cylinder",
         "widgets": {
@@ -8040,4 +8040,4 @@
     },
     "nbformat": 4,
     "nbformat_minor": 5
-}
+}