Merge pull request #130 from marcpicaud/master

Add PrestaShop (E-Commerce)

README.md

@@ -205,8 +205,11 @@ CMS are a practical way to setup a website with many features. CMS often come wi
   * [SilverStripe](https://www.silverstripe.org) - easy to use CMS with powerful MVC framework underlying. ([Demo](http://demo.silverstripe.org/), [Source code](https://github.com/silverstripe)) `BSD` `PHP`
   * [SPIP](http://www.spip.net/fr) - Publication system for the Internet. 
   * [Wordpress](https://wordpress.org/) - The worlds most-used blogging and CMS engine. ([Source code mirror](https://github.com/WordPress/WordPress)) `GPLv2`
+  
+### E-commerce
 
-
+* [PrestaShop](https://www.prestashop.com/) - PrestaShop offers a free, open-source and fully scalable e-commerce solution. ([Demo](http://demo.prestashop.com/), [Source Code](https://github.com/PrestaShop/PrestaShop)) `OSL 3.0` `PHP`
+  
 ## Download Tools
 
  * [Alltube](https://github.com/Rudloff/alltube) - A web interface for [youtube-dl](https://github.com/rg3/youtube-dl), a program to download videos and audio from [more than 100 websites](https://rg3.github.io/youtube-dl/supportedsites.html) ([Demo](http://alltubedownload.net/)) `GPL`