fix(curriculum): fix some terms in JS pyramid project (#56930)

curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-introductory-javascript-by-building-a-pyramid-generator/660f38c34a4de6141c0c369f.md

@@ -16,7 +16,7 @@ test = test + 1;
 test += 1;
 ```
 
-Update your iterator statement in the `for` loop to use addition assignment.
+Update your iteration statement in the `for` loop to use addition assignment.
 
 # --hints--
 

curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-introductory-javascript-by-building-a-pyramid-generator/660f3ce51f70571e1c5227c8.md

@@ -11,7 +11,7 @@ Comments can be helpful for explaining why your code takes a certain approach, o
 
 In JavaScript, you can use `//` to leave a single-line comment in your code.
 
-Add a single-line comment above your function to remind yourself to change the code to a different kind of loop.
+Add a single-line comment above your `for` loop to remind yourself to change the code to a different kind of loop.
 
 # --hints--
 

curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-introductory-javascript-by-building-a-pyramid-generator/660f4b641290da41b2cf0dd9.md

@@ -9,7 +9,7 @@ dashedName: step-103
 
 Just like addition, there are different operators you can use for subtraction. The <dfn>subtraction assignment</dfn> operator `-=` subtracts the given value from the current variable value, then assigns the result back to the variable.
 
-Replace your iterator statement with the correct statement using the subtraction assignment operator.
+Replace your iteration statement with the correct statement using the subtraction assignment operator.
 
 # --hints--