chore(package): update prettier to version 2.0.5

Closes #188

Author: greenkeeper[bot]

package.json

@@ -99,7 +99,7 @@
     "json5": "2.1.0",
     "kleur": "3.0.1",
     "lint-staged": "8.1.0",
-    "prettier": "1.15.3",
+    "prettier": "2.0.5",
     "pretty-bytes": "5.1.0",
     "prompts": "2.0.0",
     "replace-in-file": "3.4.2",