Update docs/MultiInstanceConnecting.md

Co-authored-by: Dmitry Kasimovskiy <98410443+dkasimovskiy@users.noreply.github.com>

docs/MultiInstanceConnecting.md

@@ -5,7 +5,7 @@
 This section shows examples of how to connect to multiple [Cartridge](https://github.com/tarantool/cartridge) routers.  
 We recommend to use balancer in production applications rather than leaving this task to the connector.
 
-If you are using **multiple tarantool clients** do not forget to **shuffle addresses** before providing them to clients.
+In case of using **multiple instances of TarantoolClient** we strongly recommend to **shuffle** list of addresses before providing them to clients.
 TarantoolClient uses [round-robin](https://en.wikipedia.org/wiki/Round-robin_scheduling) so without URIs shuffle
 the first request of each of your clients will be sent to the same instance.
 You do not have to worry about shuffling addresses if you are using single TarantoolClient connected to multiple instances.