Improve in README

README.md

@@ -1,6 +1,19 @@
+Usage
+-----
+- Double click on application file.
+- or in a Cmd shell:
+
+        \> .\SystemInformation.exe
+
+Output are both, a file named ``system_information.txt`` and stdout. Both
+display the same information: CPU, Video devices, RAM, Disk free space and OS
+version.
+
 Requieres
 ---------
-**Python version:** Python 3.x
+**Running from source or building:** Python 3.x
+
+**Running from binary:** nothing is required.
 
 Building
 --------
@@ -9,5 +22,5 @@ Building
 
 Download
 --------
-[Release 0.2](http://grulic.org.ar/~dalonso/SysInfo-0.2.zip)
-[Release 0.1](http://grulic.org.ar/~dalonso/SysInfo-0.1.zip)
+- [Release 0.2](http://grulic.org.ar/~dalonso/SysInfo-0.2.zip)
+- [Release 0.1](http://grulic.org.ar/~dalonso/SysInfo-0.1.zip)