Replaces executable (#112)

* Reversing Season 2 level-3 with level-4 due to another initiative we are working on.

* adds mocha

* fixes template reference

* replaces executable

Author: jkcso

Season-1/Level-2/hack.c

@@ -4,7 +4,7 @@
 // As all other levels, your goal is to get this file to pass.
 
 // Run hack by opening a terminal and running the following:
-// $ make Season-1/Level-2/hack && ./Season-1/Level-2/hack
+// $ make -B Season-1/Level-2/hack && ./Season-1/Level-2/hack
 
 // As a reminder, to pass this level, both this file alongside tests.c must pass.
 

Season-1/Level-2/tests.c

@@ -3,7 +3,7 @@
 // This file contains passing tests.
 
 // Run them by opening a terminal and running the following:
-// $ make Season-1/Level-2/tests && ./Season-1/Level-2/tests
+// $ make -B Season-1/Level-2/tests && ./Season-1/Level-2/tests
 
 #include "code.h"