📝 Add Cursor support for Mac key-repeat settings

Add Cursor text editor to the Mac setup instructions for enabling key-repeat functionality. This allows Cursor users to properly configure key-repeat behavior when using VSCodeVim by running the appropriate defaults write command.

README.md

@@ -64,6 +64,7 @@ defaults write com.microsoft.VSCode ApplePressAndHoldEnabled -bool false
 defaults write com.microsoft.VSCodeInsiders ApplePressAndHoldEnabled -bool false      # For VS Code Insider
 defaults write com.vscodium ApplePressAndHoldEnabled -bool false                      # For VS Codium
 defaults write com.microsoft.VSCodeExploration ApplePressAndHoldEnabled -bool false   # For VS Codium Exploration users
+defaults write -app Cursor ApplePressAndHoldEnabled -bool false                       # For Cursor Users
 defaults delete -g ApplePressAndHoldEnabled                                           # If necessary, reset global default
 ```