update readme
update readme

ahmedshuhel/screencat,rageandqq/screencat,hilerchyn/screencat,mafintosh/screencat,fbeauchamp/screencat,hortinstein/mainscreenturnon_template,fbeauchamp/screencat,cescgie/screencat,bright-sparks/screencat,bright-sparks/screencat,octalmage/screencat,rageandqq/screencat,hortinstein/mainscreenturnon_template,awronka/screencat,Ivshti/screencat,octalmage/screencat,cescgie/screencat,maxogden/screencat,mafintosh/screencat,maxogden/screencat,Ivshti/screencat,hilerchyn/screencat,awronka/screencat,ahmedshuhel/screencat