Fix console warnings

Author: patiencedaur

doc/concepts/coop_multitasking.rst

@@ -191,7 +191,7 @@ The sequence has one yield, at the end of the insert, caused by implicit commit;
 
 *   Engine = memtx.
 
-..  code-block:: memtx
+..  code-block:: lua
 
     box.begin()
     space1:get()
@@ -205,7 +205,7 @@ The sequence has one yield, at the end of the ``box.commit``, none of the insert
 
 *   Engine = vinyl.
 
-..  code-block:: vinyl
+..  code-block:: lua
 
     space:get()
     space:insert()
@@ -217,7 +217,7 @@ at commit.
 
 *   Engine = vinyl.
 
-..  code-block:: vinyl
+..  code-block:: lua
 
     box.begin()
     space1:get()

doc/concepts/modules.rst

@@ -40,8 +40,8 @@ For example, here's a Lua application that uses ``myfun()`` from
    end
 
 Tarantool provides an `extensive library <https://www.tarantool.io/en/download/rocks>`_ of compatible modules.
-Install them using Tarantool's CLI utilities like :doc:`tarantoolctl </reference/tarantoolctl>`
-or :doc:`tt CLI </reference/tt_cli/index>`.
+Install them using Tarantool's CLI utilities like :ref:`tarantoolctl <tarantoolctl>`
+or :ref:`tt CLI <tt-cli>`.
 Some modules are also included in the Tarantool repository and can be installed
 via your operating system's package manager.
 

doc/reference/tooling/tt_cli/index.rst

@@ -1,3 +1,5 @@
+..  _tt-cli:
+
 tt CLI utility
 ==============
 
@@ -6,7 +8,7 @@ Tarantool-based applications. It covers a wide range of tasks -- from installing
 a specific Tarantool version to managing remote instances and developing applications.
 
 A multi-purpose tool for working with Tarantool from the command line, ``tt`` is
-a potential replacement for :doc:`tarantoolctl </reference/tarantoolctl>`
+a potential replacement for :ref:`tarantoolctl <tarantoolctl>`
 and :doc:`Cartridge CLI </book/cartridge/cartridge_cli/index>`.
 
 .. warning::