simplified startup

Author: Oscar Lodriguez

README.md

@@ -7,7 +7,6 @@ Follow the original and great tutorial here
 [Changelog found here](https://facebook.github.io/react/blog/2016/04/07/react-v15.html)
 
 ```
-npm i 
 npm start 
 ```
 

package.json

@@ -27,7 +27,7 @@
     "private": false,
     "scripts": {
         "build": "webpack",
-        "start": "webpack-dev-server --devtool eval-source --progress --colors --hot --inline --history-api-fallback"
+        "start": "npm i && webpack-dev-server --devtool eval-source --progress --colors --hot --inline --history-api-fallback"
     },
     "repository": {
         "type": "git",