chore(package): update typedoc to version 0.17.4

Closes #33

Author: greenkeeper[bot]

package.json

@@ -57,7 +57,7 @@
     "semantic-release": "^15.6.0",
     "tslint": "^5.10.0",
     "tslint-config-prettier": "^1.13.0",
-    "typedoc": "^0.11.1",
+    "typedoc": "^0.17.4",
     "typescript": "~2.8.4"
   },
   "config": {