moved a small example from the "profiling tutorial" to the examples directory.

docs/examples/tutorial/profiling_tutorial/often_called.pyx

+cimport cython
+
+@cython.profile(False)
+def my_often_called_function():
+    pass

docs/src/tutorial/profiling_tutorial.rst

@@ -44,14 +44,9 @@ If your profiling is messed up because of the call overhead to some small
 functions that you rather do not want to see in your profile - either because
 you plan to inline them anyway or because you are sure that you can't make them
 any faster - you can use a special decorator to disable profiling for one
-function only::
-
-   cimport cython
-
-   @cython.profile(False)
-   def my_often_called_function():
-      pass
+function only:
 
+.. literalinclude:: ../../examples/tutorial/profiling_tutorial/often_called.pyx
 
 Enabling line tracing
 ---------------------