Removed numbers from start of var names in 4.js

Author: habohlin

Sprint-2/2-mandatory-errors/4.js

@@ -1,2 +1,4 @@
-const 12HourClockTime = "8:53pm";
-const 24hourClockTime = "20:53";
+const twelveHourClockTime = "8:53pm";
+const twentyfourHourClockTime = "20:53";
+
+// variable names cannot start with numbers in javascript. I changed them to start with letters.