added clearer informations in readme

Author: oguilleux

readme.md

@@ -1,12 +1,19 @@
 # WordPress Gulp and Webpack blank theme
 
-This is the installation process for dependencies for this WordPress theme
+## Under the hood
+
+- [ES6](https://babeljs.io/learn-es2015/) for JavaScript
+- [SASS](http://sass-lang.com/) preprocessor for CSS
+- [Breakpoint slicer](https://github.com/lolmaus/breakpoint-slicer/) for faster media queries
+- [Bootstrap 4](https://github.com/lolmaus/breakpoint-slicer/) as your css framework
+- [Gulp](https://gulpjs.com/) & [Webpack](https://webpack.js.org/) for managing, compiling and optimizing theme's asset files
 
 ## Requirements
 
 * Node
 * Gulp
 
+
 ## Usage
 
 First, clone this repository.