Clarify blackjack instructions (#1757)

Author: PatrickMcSweeny

exercises/concept/blackjack/.docs/instructions.md

@@ -62,7 +62,7 @@ Depending on your two cards and the card of the dealer, there is a strategy for
 Although not optimal yet, you will follow the strategy your friend Alex has been developing, which is as follows:
 
 - If you have a pair of aces you must always split them.
-- If you have a Blackjack (two cards that sum up to a value of 21), and the dealer does not have an ace, a figure or a ten then you automatically win.
+- If you have a Blackjack (two cards that sum up to a value of 21), and the dealer does not have an ace, a face card or a ten then you automatically win.
   If the dealer does have any of those cards then you'll have to stand and wait for the reveal of the other card.
 - If your cards sum up to a value within the range [17, 20] you should always stand.
 - If your cards sum up to a value within the range [12, 16] you should always stand unless the dealer has a 7 or higher, in which case you should always hit.