Merge pull request #819 from helioz11/clientdoc

add `AsyncKernelClient` to `doc/api/client.rst`

Author: davidbrochart

docs/api/client.rst

@@ -35,3 +35,19 @@ client - communicating with kernels
 .. autoclass:: BlockingKernelClient
 
    .. automethod:: execute_interactive
+
+   .. automethod:: get_shell_msg
+
+   .. automethod:: get_iopub_msg
+
+   .. automethod:: get_stdin_msg
+
+   .. automethod:: get_control_msg
+
+   .. automethod:: wait_for_ready
+
+   .. automethod:: is_alive
+
+.. autoclass:: AsyncKernelClient
+
+   :class:`AsyncKernelClient` is identical to :class:`BlockingKernelClient` but the methods described above are async.