Add a comment to modelverse_kernel/main.py

kernel/modelverse_kernel/main.py

@@ -35,6 +35,9 @@ class ModelverseKernel(object):
 
         # To disable the JIT, uncomment the line below:
         #     self.jit.set_jit_enabled(False)
+        #
+        # To disable direct calls in the JIT, uncomment the line below:
+        #     self.jit.allow_direct_calls(False)
         self.debug_info = defaultdict(list)
 
     def execute_yields(self, username, operation, params, reply):