chore(package): update prettier to version 2.0.0 (#147)

Co-authored-by: greenkeeper[bot] <23040076+greenkeeper[bot]@users.noreply.github.com>

Author: greenkeeper[bot]

package.json

@@ -38,7 +38,7 @@
     "cz-conventional-changelog": "^3.0.0",
     "husky": "^4.0.2",
     "jest": "^24.1.0",
-    "prettier": "^1.16.4",
+    "prettier": "^2.0.0",
     "react": "^16.8.4",
     "react-dom": "^16.8.4",
     "react-test-renderer": "^16.8.6",