docs: Flame Platforms should unify variable for NAME_OF_YOUR_REPOSITO…

…RY (#3365)

Fixes #3364


# Description
Merges two variables that mean the same thing into one.
(NAME_OF_YOUR_REPOSITORY and YOUR_REPO_NAME)

doc/flame/platforms.md

@@ -77,7 +77,7 @@ Now, whenever you push something to the `main` branch, the action will run and u
 deployed game.
 
 The game should be available at an URL like this:
-`https://YOUR_GITHUB_USERNAME.github.io/YOUR_REPO_NAME/`
+`https://YOUR_GITHUB_USERNAME.github.io/NAME_OF_YOUR_REPOSITORY/`
 
 
 ## Deploy your game to itch.io