Extract from AdminLTE 2
in hooks folder write:
$ git clone https://github.com/myappgini/box.git box
Expand zip file into box folder inside hooks folder
Add the next lines in footer-extras.php
//* load library for box card in Appgini with bootstrap3
include ('hooks/box/scripts.php');
You can use the add_card function to add card in your proyect or can use html code like example in index.html