reference card as been moved

reference card as been moved to:
https://www.jetbrains.com/phpstorm/documentation/docs/PhpStorm_ReferenceCard.pdf

Author: Alice Ferrazzi

README.md

@@ -4,7 +4,7 @@
 
 In these materials, you'll learn about many of the features and productivity tools available in [PhpStorm](http://www.jetbrains.com/phpstorm) IDE. Examples are navigation, editing, inspections, live templates, refactoring, tools like Composer and the REST client and many more things. It's virtually impossible to cover every option and feature in PhpStorm, but we're providing a number of practical exercises on how we can do our daily work as a PHP developer.
 
-We'll also cover a vast amount of keyboard shortcuts to make working with PhpStorm more efficient. Other IntelliJ IDEA based IDE's use the same keyboard shortcuts, so if you know how to work with PhpStorm, you'll know how to work with WebStorm, RubyMine, PyCharm, IntelliJ IDEA and more. A [cheat sheet is available online](http://bit.ly/phpstorm-shortcuts) and is also included in the workshop download.
+We'll also cover a vast amount of keyboard shortcuts to make working with PhpStorm more efficient. Other IntelliJ IDEA based IDE's use the same keyboard shortcuts, so if you know how to work with PhpStorm, you'll know how to work with WebStorm, RubyMine, PyCharm, IntelliJ IDEA and more. A [cheat sheet is available online](http://bit.ly/1Ni0XJ0) and is also included in the workshop download.
 
 This workshop is self-paced, meaning you can work your way through slides and exercises on your own, whenever and wherever you want. Exercises come as a PhpStorm project in which every file is a new exercise that may contain code and tips to get things done.