Update web_map_services.ipynb

Author: jukent

notebooks/web_map_services.ipynb

@@ -58,7 +58,7 @@
     "| [Intro to GeoViews](https://geoviews.org/) | Helpful | Geographic visualizations |\n",
     "| [Intro to Panel](https://panel.holoviz.org/) | Helpful | Dashboard creations |\n",
     "| [Intro to Requests](https://requests.readthedocs.io/en/latest/) | Helpful | Webpage requests |\n",
-    "| [Intro to Cartopy](https://foundations.projectpythia.org/core/cartopy/cartopy.html) | Helpful | Map projections |\n",
+    "| [Intro to Cartopy](https://foundations.projectpythia.org/core/cartopy/cartopy) | Helpful | Map projections |\n",
     "| [Intro to OWSLib](https://owslib.readthedocs.io/en/latest/usage.html) | Helpful | WMS URLs |\n",
     "\n",
     "- **Time to learn**: 15 minutes\n",