Update README.md

README.md

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 # MouseWheelSetter4TrackballWorks
-Kensington TrackballWorks make your mouse wheel line scroll into 1.
+A Kensington TrackballWorks make your mouse wheel line scroll setting into 1.
+If you use a Kensington Trackball and a mouse together, you have to change your mouse wheel scroll setting on control panel every time to boot your computer.
+This app make your mouse scroll setting as you wish. (default value is 5)
+This app also check the TrackballWorks process exist before it set mouse wheel scroll line.
+Moreover, it will wait the start of TrackballWorks process "TbwHelper.exe".
+So, if you put this app into windows startup folder, you have no more things to do.
+(Default path is C:\Users\<your name>\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup)
 
-ConKensington TrackballWorks make your mouse wheel line scroll into 1.
+mouseSetter.exe : set your mouse wheel scroll lines into 5
+mouseSetter.exe <# of lines> : set your mouse wheel scroll lines into <# of lines>