link checking

Author: bollwyvl

docs/Configuring.ipynb

@@ -47,7 +47,7 @@
     "If you don't see an implementation for the language server you need, continue\n",
     "reading!\n",
     "\n",
-    "> Please consider [contributing your language server spec](../Contributing.md)\n",
+    "> Please consider [contributing your language server spec](../Contributing.ipynb)\n",
     "> to `jupyter-lsp`!"
    ]
   },
@@ -171,7 +171,7 @@
     "\n",
     "`pip`-installable packages in the same environment as the Jupyter `notebook` server\n",
     "can be automatically detected as providing [language_servers](#language_servers). These are a\n",
-    "little more involved, but also more powerful: see more in [Configuring](Contributing.md).\n",
+    "little more involved, but also more powerful: see more in [Contributing](Contributing.ipynb#Specs).\n",
     "Servers configured this way are loaded _before_ those defined in \n",
     "[configuration files](#Configuration-Files), so that a user can fine-tune their available\n",
     "servers."