Update level-21.mdx

docs/level-21.mdx

@@ -88,7 +88,7 @@ import ChopMoveIgnitionTwoCards from "./level-21/chop-move-ignition-two-cards.ym
   - Avoid violating _Good Touch Principle_.
   - Save a _Delayed Playable_ card that is followed by a critical card.
   - Get a blind-play from _Elimination_ when the duplicate is visible.
-- In general, _Chop Move_-related clues are turned off as soon as there are no cards left to _Chop Move_. Specifically, this means _one-away-from-playable_ cards that cannot be given a direct _Play Clue_ or _Save Clue_. Thus, if there are no cards left to _Chop Move_, a _Chop Move Ignition_ would transform into something else, like a _Play Clue_ on the 5 or a _Double Ignition_ of some sort.
+- In general, _Chop Move_-related clues are turned off as soon as there are no cards left to _Chop Move_. Specifically, this means _one-away-from-playable_ cards that cannot be given a direct _Play Clue_ or _Save Clue_. Thus, if there are no cards left to _Chop Move_, a _Chop Move Ignition_ would transform into something else, like a _Play Clue_ or a _Double Ignition_ of some sort.
 
 #### Interaction Between the Chop Move Ignition and 5 Rank Clues