chore(package): update prettier-standard to version 7.0.3

Closes #12

Author: greenkeeper[bot]

package.json

@@ -38,7 +38,7 @@
     "husky": "^0.14.0",
     "lint-staged": "^4.2.1",
     "mocha": "^3.4.2",
-    "prettier-standard": "^6.0.0",
+    "prettier-standard": "^7.0.3",
     "semantic-release": "^7.0.1",
     "standard": "^10.0.2"
   },