Update comment for clarity on ReferenceError

Fixed comment to clarify the error message.

Author: anitahy73

Sprint-2/2-mandatory-errors/2.js

@@ -1,5 +1,6 @@
 // Currently trying to print the string "I was born in Bolton" but it isn't working...
-// what's the error 
+// what's the error?
+//ReferenceError: Cannot access 'cityOfBirth' before initialization
 
 const cityOfBirth = "Bolton";
 console.log(`I was born in ${cityOfBirth}`);