Update README.md

Author: MEFRREEX

README.md

@@ -4,7 +4,7 @@ A simple Rcon Bot for VK
 ## Used libraries: 
 - [vk-java-sdk](https://github.com/VKCOM/vk-java-sdk) 
 - [snakeyaml](https://github.com/snakeyaml/snakeyaml) 
-- [minecraft-rcon-client](https://github.com/t9t/minecraft-rcon-client) 
+- [rkon-core](https://github.com/kr5ch/rkon-core) 
 
 
 ## Build JAR file