Fix typos

Author: xuniq

doc/dev_guide/internals/box_protocol.rst

@@ -1083,7 +1083,7 @@ Graceful shutdown protocol
 Since :doc:`2.10.0 </release/2.10.0>`.
 
 The protocol uses the event subscription system.
-For more information about it, see :ref:`box.shutdown <bsystem-events_box-shutdown>`
+For more information about it, see :ref:`box.shutdown <system-events_box-shutdown>`
 and :ref:`reference for the event watchers <box-watchers>`.
 
 The shutdown protocol works in the following way:
@@ -1103,8 +1103,8 @@ The shutdown protocol works in the following way:
 
 #.  After all connections are closed, the server will be stopped.
     Otherwise, a timeout occurs, and the Tarantool exits immediately.
-
-You can set up the required timeout with the :ref:`set_on_shutdown_timeout() <box_ctl-on_shutdown_timeout>` function.
+    You can set up the required timeout with the
+    :ref:`set_on_shutdown_timeout() <box_ctl-on_shutdown_timeout>` function.
 
 ..  _box_protocol-responses:
 

doc/reference/reference_lua/net_box.rst

@@ -75,7 +75,7 @@ On this diagram:
 
 *   The state changes to the ``graceful_shutdown`` state when the state machine
     receives a :ref:`box.shutdown <system-events_box-shutdown>` event from the remote host
-    (see :ref:`<net_box-on_shutdown>`).
+    (see :ref:`conn:on_shutdown() <net_box-on_shutdown>`).
     Once all pending requests are completed, the state machine switches to the ``error`` (``error_reconnect``) state.
 
 *   The transport goes to the ``error`` state in case of an error.