Update 0.js

Adding // to make a comment or add instructions for human consumption.

Author: codebyshay

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

@@ -1,2 +1,3 @@
-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?
+// 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?
+// The forward slash is used to indicate a comment in JavaScript, so the computer will ignore these lines when running the program.