Update README.md

Author: Yoticc

README.md

@@ -34,6 +34,10 @@ ushort* unmanagedStringPtr = (ushort*)strCo;
 //...
 ```
 
+Used Libraries
+------------------------------
+**DotnetNativeBase** [![NuGet](https://img.shields.io/nuget/v/DotnetNativeBase.svg)](https://www.nuget.org/packages/DotnetNativeBase)
+
 Versions
 ------------------------------
 | Start ordinal | Framework | Description                  | Date         |