added AM files to .gitignore
added AM files to .gitignore

DistilledLtd/Chartbuilder,kway/Chartbuilder,NerdWallet/Chartbuilder,nowthis/Chartbuilder,kway/Chartbuilder,bwareham/Chartbuilder2,conversation/Chartbuilder,SCPR/Chartbuilder,louisstow/Chartbuilder,ducroquet/Chartbuilder,defenseone/Chartbuilder,valdobc/volt-teste,valdobc/volt-teste,johnsonchandra/Chartbuilder,bryceroney/Chartbuilder,Quartz/Chartbuilder,Quartz/Chartbuilder,correctiv/Chartbuilder,taylorhxu/Chartbuilder,zhangweiabc/Chartbuilder,SCPR/Chartbuilder,correctiv/Chartbuilder,zhangweiabc/Chartbuilder,ajam/Chartbuilder,laurenancona/Chartbuilder,NerdWallet/Chartbuilder,defenseone/Chartbuilder,bwareham/Chartbuilder2,bryceroney/Chartbuilder,DistilledLtd/Chartbuilder,taylorhxu/Chartbuilder,johnsonchandra/Chartbuilder,ajam/Chartbuilder,ducroquet/Chartbuilder,louisstow/Chartbuilder,smartkarma/Chartbuilder,laurenancona/Chartbuilder,nowthis/Chartbuilder