_updated readme

README.md

@@ -1,2 +1,23 @@
 # wmctrl-for-windows
-Command line implementation of wmctrl for windows (pseudo-equivalent)
+Command line implementation of wmctrl for windows (pseudo-equivalent).
+Only few features of the linux tool wmctrl are implemented so far, that is:
+    - List the window titles, process name and ID
+    - Switch the focus to a given window
+
+The program is written in C-sharp.
+This repository contains the source code, compatible Mono or Microsoft.
+
+## Features/ usage
+        
+usage: wmctrl [options] [args]
+
+options:
+  -h         : show this help
+  -l         : list windows
+  -a <PNAME> : switch to the window of the process name <PNAME>
+
+
+
+## Installation
+Compile.
+Put the exe file somewhere in your system path.