[Accessibilite] Teach Access Initiative /tutorial/

["patrick.agelinux" <patrick.agelinux AT free.fr>]

https://teachaccess.github.io/tutorial/
This resource is part of the Teach Access Initiative, and provides best 
practices for making accessible mobile and web apps. This tutorial currently 
provides basic training for developers and designers, with more disciplines 
to 
come! If you are new to accessibility, you've come to the right place - the 
following material will help you get a solid footing on accessibility via 
hands-on exercises and useful reference guides.