chore(package): update apidoc to version 0.23.0

Closes #18

Author: greenkeeper[bot]

package.json

@@ -43,7 +43,7 @@
     "@types/chai": "^4.1.7",
     "@types/mocha": "^5.2.7",
     "@types/node": "^13.1.0",
-    "apidoc": "^0.17.7",
+    "apidoc": "^0.23.0",
     "chai": "^4.2.0",
     "copyfiles": "^2.1.0",
     "mocha": "^6.1.4",