Update Values.md documentation by tellodaniel · Pull Request #705 · hotwired/stimulus

@tellodaniel

Adds a note about value data attribute definition. Makes it clear that it should be only defined in the same place as the controller.

lb-

Co-authored-by: LB (Ben Johnston) <mail@lb.ee>

@tellodaniel

marcoroth

Improve text to make it more clear

@marcoroth