Update comments to explain syntax error in 2.js

Clarified explanation of the syntax error in the comments.

Author: Ebrahim-Moqbel

Sprint-3/1-key-errors/2.js

@@ -14,7 +14,7 @@
 
 // =============> explain this error message here
 /* The function was givin a number as its perameter where in JS only allows varaible names and usnig a number causes a SyntaxError
- Also, the function was returning num*num where num is undefined causing a syntax error 
+ Also, the function was returning num*num where num is undefined causing a SyntaxError 
  */
 
 // Finally, correct the code to fix the problem
@@ -25,4 +25,4 @@ function square(num) {
   return num * num;
 }
 
-console.log(square(25));
+console.log(square(25));