chore(package): update eslint-plugin-prettier to version 3.0.1

Closes #27

Author: greenkeeper[bot]

package.json

@@ -56,7 +56,7 @@
     "eslint-plugin-flowtype": "^2.46.1",
     "eslint-plugin-import": "^2.9.0",
     "eslint-plugin-node": "^6.0.1",
-    "eslint-plugin-prettier": "^2.6.0",
+    "eslint-plugin-prettier": "^3.0.1",
     "eslint-plugin-promise": "^3.7.0",
     "eslint-plugin-standard": "^3.0.1",
     "flow-bin": "^0.73.0",