Update README.md

Author: red-sayed

README.md

@@ -4,7 +4,10 @@
 
 ## What is it?
 
-This is an implementation of _DiifieHellman_ key exchange _protocol_ that works with _very long inegers_(19.729 chars long, can work with bigger ones, look at the screenshot that is placed above this text or below). You also can find an _example file(main.cpp)_ at this repository with it's description. It is a part of [_RedLibrary_](https://github.com/Red-company/RedLibrary).
+This is an implementation of _DiifieHellman_ key exchange _protocol_ that works with _very long inegers_(19.729 chars long, can work with bigger ones, look at the screenshot that is placed above this text or below). You also can find an _example file(main.cpp)_ at this repository with it's description. <br/>
+
+Advanced DiffieHellman is [_here_.](https://github.com/vladimirrogozin/2layerDiffieHellman)<br/>
+It is also a part of [_RedLibrary_](https://github.com/Red-company/RedLibrary).
 
 ## How it works?