Update README.md

Author: BornToBeRoot

README.md

@@ -16,6 +16,8 @@ To reach the best possible performance, this script uses a [RunspacePool](https:
 
 If you are looking for a module containing this script... you can find it [here](https://github.com/BornToBeRoot/PowerShell)!
 
+Maybe you're also interested in my asynchronus [IPv4 Port Scanner](https://github.com/BornToBeRoot/PowerShell_IPv4PortScanner).
+
 ## Syntax
 
 ```powershell