doc: default port 5001

Author: pratapvardhan

nbs/tutorials/by_example.ipynb

@@ -63,14 +63,14 @@
     "\n",
     "```\n",
     "INFO:     Will watch for changes in these directories: ['/home/jonathan/fasthtml-example']\n",
-    "INFO:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)\n",
+    "INFO:     Uvicorn running on http://127.0.0.1:5001 (Press CTRL+C to quit)\n",
     "INFO:     Started reloader process [871942] using WatchFiles\n",
     "INFO:     Started server process [871945]\n",
     "INFO:     Waiting for application startup.\n",
     "INFO:     Application startup complete.\n",
     "```\n",
     "\n",
-    "If you navigate to [http://127.0.0.1:8000](http://127.0.0.1:8000) in a browser, you'll see your \"Hello, World\". If you edit the `app.py` file and save it, the server will reload and you'll see the updated message when you refresh the page in your browser."
+    "If you navigate to [http://127.0.0.1:5001](http://127.0.0.1:5001) in a browser, you'll see your \"Hello, World\". If you edit the `app.py` file and save it, the server will reload and you'll see the updated message when you refresh the page in your browser."
    ]
   },
   {