created and linked how to play screen
flashing arrow
super basic how to play

will add in how to bet
why does a button in one row effect the other rows’ spacing :(
explaining each play option in a dialogue
good enough how to play for now
Merge remote-tracking branch 'origin/howToPlay'

Conflicts:
	blackjack/app/src/main/AndroidManifest.xml
fixed doubledown. checks before moving on