Add placeholder links

Author: co2-git

README.md

@@ -7,9 +7,9 @@ This is a GUI for running React Native commands. It is built with electron so it
 
 [v0.1.1](http://v1.1.1) is out!
 
-![alt text](http://clinsite.com/wp-content/uploads/2017/01/Apple-logo-120x120.png)
 
-<img src="https://upload.wikimedia.org/wikipedia/commons/thumb/3/34/Windows_logo_-_2012_derivative.svg/120px-Windows_logo_-_2012_derivative.svg.png" />
-<img src="http://www.linuxscrew.com/wp-content/uploads/2007/11/120px-crystal_128_penguin.png" />
+[<img alt="Mac" src="http://clinsite.com/wp-content/uploads/2017/01/Apple-logo-120x120.png" />](http://google.es)
+[<img alt="Windows"  src="https://upload.wikimedia.org/wikipedia/commons/thumb/3/34/Windows_logo_-_2012_derivative.svg/120px-Windows_logo_-_2012_derivative.svg.png" />](http://google.es)
+[<img alt="Linux" src="http://www.linuxscrew.com/wp-content/uploads/2007/11/120px-crystal_128_penguin.png" />](http://google.es)
 
 # Screenshots