Added requirement for node version 10.

README.md

@@ -48,7 +48,7 @@ Unstable testing versions of the lates builds of the configurator for most platf
 
 ### Development
 
-1. Install node.js
+1. Install node.js (version 10 required)
 2. Install yarn: `npm install yarn -g`
 3. Change to project folder and run `yarn install`.
 4. Run `yarn start`.

package.json

@@ -35,6 +35,9 @@
   },
   "author": "The Betaflight open source project.",
   "license": "GPL-3.0",
+  "engines": {
+    "node": "10.x"
+  },
   "dependencies": {
     "bluebird": "^3.5.5",
     "i18next": "^17.0.11",