Docs: Update the babel dependencies to install & configuration needed (…

…closes #2136)

README.md

@@ -119,21 +119,21 @@ gulp.task('default', build);
 
 ## Use latest JavaScript version in your gulpfile
 
-Node already supports a lot of **ES2015**, to avoid compatibility problem we suggest to install Babel and rename your `gulpfile.js` as `gulpfile.babel.js`.
+Node already supports a lot of __ES2015+__ features, but to avoid compatibility problems we suggest to install Babel and rename your `gulpfile.js` as `gulpfile.babel.js`.
 
 ```sh
-npm install --save-dev babel-register babel-preset-es2015
+npm install --save-dev @babel/register @babel/core @babel/preset-env
 ```
 
 Then create a **.babelrc** file with the preset configuration.
 
 ```js
 {
-  "presets": [ "es2015" ]
+  "presets": [ "@babel/preset-env" ]
 }
 ```
 
-And here's the same sample from above written in **ES2015**.
+And here's the same sample from above written in **ES2015+**.
 
 ```js
 import gulp from 'gulp';