Update comment formatting to use multi-line comment style for clarity

Author: TTiamiyu

Sprint-1/2-mandatory-errors/0.js

@@ -1,5 +1,5 @@
 //This is just an instruction for the first activity - but it is just for human consumption
 //We don't want the computer to run these 2 lines - how can we solve this problem?
 
-To prevent the computer from executing these lines of code, you can comment them out, 
+/* To prevent the computer from executing these lines of code, you can comment them out, 
 you can use `//` for single-line comments or `/* */` for multi-line comments, like i demonstated above.