Added a few missing commands and improved a few previous ones!

[FalconEthics]

Added the following:

Shortcut	Description
:%s/foo/bar	Replace foo with bar in whole document (first occurrence in line)
:%s/foo/bar/g	Replace foo with bar in whole document (all occurrences in line)
:%s#foo#bar#g	Replace foo with bar in whole document (all occurrences in line)
I	Append from Start of line
fc	Go forward on character c
Fc	Go backward on character c
tc	Go forward to character c
Tc	Go backward to character c
_	Start of line (after whitespace)