update install with arduino version - closes #59

Author: ladislas

INSTALL.md

@@ -47,10 +47,12 @@ It will allow us to investigate first and not overflow the Arduino-Makefile issu
 
 Before starting, please make sure you have those installed:
 
-*[Arduino IDE 1.0.x or 1.6.x](http://arduino.cc/en/main/software#toc2) - Download the app from the website
-*[Homebrew](http://mxcl.github.io/homebrew/) - Follow the instructions on their website
+*[Arduino IDE (latest version)(1)](http://arduino.cc/en/main/software#toc2) - Download the app from the website
+*[Homebrew](https://brew.sh) - Follow the instructions on their website
 *[Git](http://git-scm.com/) - use `brew install git` to install the latest version
 
+(1): Follow the requirements of [sudar/Arduino-Makefile](https://github.com/sudar/Arduino-Makefile/).
+
 #### Linux
 
 Before starting we need to install `git` and `arduino`: