Update 0.js

Added comments to exclude instructional lines from execution.

Author: HoussamLh

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

@@ -1,2 +1,12 @@
+ // we can turn the lines into comments. we can use:
+
+// for single-line comments, or
+
+/* for multi-line comments. */
+
+/*
+
 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?
+We don't want the computer to run these 2 lines - how can we solve this problem?  
+
+*/