Add navigationLinks and sidebarLinks to the example

Author: futurGH

example/typedoc.json

@@ -10,5 +10,12 @@
     },
     "searchGroupBoosts": {
         "Classes": 1.5
+    },
+    "navigationLinks": {
+        "Docs": "https://typedoc.org/guides/overview",
+        "GitHub": "https://github.com/TypeStrong/typedoc"
+    },
+    "sidebarLinks": {
+        "API": "https://typedoc.org/api"
     }
 }