fix(curriculum): specify parameter in forEach method callback function (freeCodeCamp#59540)

Author: Supravisor

curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-intermediate-oop-by-building-a-platformer-game/64c9db021d4d912906878f3a.md

@@ -7,7 +7,7 @@ dashedName: step-79
 
 # --description--
 
-Inside your condition, add a `forEach` loop to iterate through the `platforms` array. 
+Inside your condition, add a `forEach` loop to iterate through the `platforms` array. Inside the callback function use `platform` for the parameter.
 
 Inside the loop, use the subtraction assignment operator to subtract 5 from the platform's `x` position.