Fix - docs: `b-button collection` button examples were missing a couple of commas
Fix - docs: `b-button collection` button examples were missing a couple of commas

jeremysnyder/Buttons,ExchangeCore/Buttons,KedneckInc/Buttons,KedneckInc/Buttons,nickzhuyb/Buttons,nickzhuyb/Buttons,MuellerMatthew/Buttons,ExchangeCore/Buttons,MuellerMatthew/Buttons,jeremysnyder/Buttons,Woodham/Buttons,Woodham/Buttons