build(node-version): upgraded to node v12

since joi now requires features from v12

BREAKING CHANGE: node v12 is now required due to joi requirements

Author: travi

.nvmrc

@@ -1 +1 @@
-v10
+v12

README.md

@@ -8,6 +8,7 @@
 ## Usage
 
 [![npm](https://img.shields.io/npm/v/@travi/hapi-react-router.svg?maxAge=2592000)](https://www.npmjs.com/package/@travi/hapi-react-router)
+![node][node-badge]
 [![license](https://img.shields.io/github/license/travi/hapi-react-router.svg)](LICENSE)
 
 ### Installation
@@ -113,3 +114,5 @@ $ npm test
 ```sh
 $ npm start
 ```
+
+[node-badge]: https://img.shields.io/node/v/@travi/javascript-scaffolder.svg

package.json

@@ -105,7 +105,7 @@
     "lib/"
   ],
   "engines": {
-    "node": ">8"
+    "node": ">12"
   },
   "config": {
     "commitizen": {