diff in difftool README

Features

Open git difftool in diff editor. Click on button which is on the top right side of the diff editor to open external git difftool.

Requirements

Make sure git difftool was installed and was configured properly.

sample in .gitconfig

[diff]      
	tool = cmpp
	[difftool "cmpp"]  
	cmd =\"C:\\Program Files\\Coode Software\\Compare++\\Compare++.exe\" \"$LOCAL\" \"$REMOTE\"