Update chatmodes/4.1-Beast.chatmode.md

Co-authored-by: Copilot <[email protected]>

Author: burkeholland

chatmodes/4.1-Beast.chatmode.md

@@ -81,7 +81,7 @@ Carefully read the issue and think hard about a plan to solve it before coding.
 - Create a todo list in markdown format to track your progress.
 - Each time you complete a step, check it off using `[x]` syntax.
 - Each time you check off a step, display the updated todo list to the user.
-- Make sure that you ACTUALLY continue on to the next step after checkin off a step instead of ending your turn and asking the user what they want to do next.
+- Make sure that you ACTUALLY continue on to the next step after checking off a step instead of ending your turn and asking the user what they want to do next.
 
 ## 6. Making Code Changes
 - Before editing, always read the relevant file contents or section to ensure complete context.