Update INSTALL.md

Author: urFate

INSTALL.md

@@ -1,6 +1,6 @@
 # Installation
 
-> IMPORTANT: McTools supports only Linux OS! Other systems support will be added in future.
+> IMPORTANT: McTools supports Linux & Windows since v1.2, older versions builded only for linux based systems.
 
 1. [Download](https://github.com/urFate/McTools/releases/latest) required package 
 
@@ -17,3 +17,8 @@
 	 * Unpack tar archive
      * Run `install.sh` script (with super user privilege)
 
+	
+	Windows:
+	
+	* Just run mctool EXE file in your CMD. Installation package is not provided.
+