Update README (fix #163)

Author: binarymaster

README.md

@@ -62,6 +62,15 @@ It's recommended to have original termsrv.dll file with the RDP Wrapper installa
 - RDPWInst can be used for unattended installation / deployment
 - Windows 2000, XP and Server 2003 will not be supported
 
+### Key features:
+- RDP host server on any Windows edition beginning from Vista
+- Console and remote sessions at the same time
+- Using the same user simultaneously for local and remote logon (see configuration app)
+- Up to 15 concurrent sessions (the actual limitation depends on your hardware and OS version)
+- Console and RDP session shadowing (using [Task Manager in Windows 7](http://cdn.freshdesk.com/data/helpdesk/attachments/production/1009641577/original/remote_control.png?1413476051) and lower, and [Remote Desktop Connection in Windows 8](http://woshub.com/rds-shadow-how-to-connect-to-a-user-session-in-windows-server-2012-r2/) and higher)
+- Full [multi-monitor support](https://github.com/stascorp/rdpwrap/issues/163) for RDP host
+- ...and if you find a new feature not listed here, [tell us](https://github.com/stascorp/rdpwrap/issues/new) ;)
+
 ### Porting to other platforms:
 - **ARM** for Windows RT (see links below)
 - **IA-64** for Itanium-based Windows Server? *Well, I have no idea* :)