add comment about mytonctrl2

Author: Full-Hat

docs/participate/run-nodes/full-node.mdx

@@ -15,6 +15,8 @@ To install and manage your own node, use the **MyTonCtrl** open-source tool deve
 
 [MyTonCtrl](https://github.com/ton-blockchain/mytonctrl) is a console application that is a convenient wrapper for fift, lite-client, and validator-engine-console. It has been specifically developed to streamline wallet, domain, and validator management tasks on the Linux operating system.
 
+Actually, there is [MyTonCtrl2](https://github.com/ton-blockchain/mytonctrl/tree/mytonctrl2) with a lot of improvements ([single nominator pool](/participate/network-maintenance/single-nominator), more checks, etc.). But now it is under development and can be unstable.
+
 We are actively seeking feedback about the installation process. If you have any questions or suggestions, please [contact us](https://t.me/Alexgton).
 
 ## OS requirements