chore(package): update typedoc to version 0.15.3

Closes #23

Author: greenkeeper[bot]

package.json

@@ -101,7 +101,7 @@
     "tslint": "^5.11.0",
     "tslint-config-prettier": "^1.15.0",
     "tslint-config-standard": "^8.0.1",
-    "typedoc": "^0.14.0",
+    "typedoc": "^0.15.3",
     "typescript": "^3.0.3",
     "travis-deploy-once": "^5.0.9"
   },