update readme to add Webmecanik automation

also i noticed that mautic is missing in the list. i created a new category :)

README.md

@@ -56,7 +56,11 @@ Bonus:
 * Comment
   * Disqus
   * Facebook (commentaire)
-
+  
+* Marketing Automation & CRM
+  * Mautic
+  * Webmecanik Automation
+  
 * Social network
   * AddThis
   * AddToAny (feed)