added solution to 4.js

Author: Alex Jamshidi

Sprint-1/2-mandatory-errors/4.js

@@ -1,2 +1,6 @@
 const 12HourClockTime = "20:53";
-const 24hourClockTime = "08:53";
+const 24hourClockTime = "08:53";
+
+// The error: SyntaxError: Invalid or unexpected token
+// This occurs as a variable cannot start with a number (it can include a number)
+// Renaming to something like ClockTime12hour would solve this