doc: mention g:CommandT{Ignore,Smart}Case in the tips section
doc: mention g:CommandT{Ignore,Smart}Case in the tips section

mtimkovich/command-t,besarthoxhaj/command-t,supriyantomaftuh/command-t,besarthoxhaj/command-t,mtimkovich/command-t,yrro/command-t,vrkansagara/command-t,wincent/command-t,lencioni/command-t,yrro/command-t,wincent/command-t,lencioni/command-t,supriyantomaftuh/command-t,vrkansagara/command-t,wincent/command-t