chore(package): update eslint-plugin-prettier to version 3.1.2

Closes #5

Author: greenkeeper[bot]

package.json

@@ -25,7 +25,7 @@
     "eslint-config-prettier": "^3.0.1",
     "eslint-config-xo": "^0.24.2",
     "eslint-plugin-json": "^1.2.1",
-    "eslint-plugin-prettier": "^2.6.2",
+    "eslint-plugin-prettier": "^3.1.2",
     "husky": "^0.14.3",
     "jest": "^23.5.0",
     "jest-cli": "^23.5.0",