Update README.md

Author: lorenzobruni

README.md

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 # Server API Library
-The **Server API Library** is a library of [C# (.NET)](https://docs.microsoft.com/en-us/dotnet/csharp/) namespaced methods with a [JSON-RPC](https://www.jsonrpc.org/specification) listener for building fast, efficient and modular **API** / **Web-Services**.
+The **Server API Library** is a library of [C# (.NET)](https://docs.microsoft.com/en-us/dotnet/csharp/) namespaced methods with a [JSON-RPC](https://www.jsonrpc.org/specification) and [RESTful](https://en.wikipedia.org/wiki/Representational_state_transfer) listener for building fast, efficient and modular **API** / **Web-Services**.
 
 ## [Wiki](https://github.com/CSOIreland/Server-API-Library/wiki)
 The Wiki centrally hosts all the technical and business information about the **Server API Library**: