Update README.md

Author: NehaSony

README.md

@@ -25,7 +25,7 @@
 Zero dependency library for generating a Mastercard API compliant OAuth signature.
 
 ### Compatibility <a name="compatibility"></a>
-Java 11+
+Java 17+
 
 ### References <a name="references"></a>
 * [OAuth 1.0a specification](https://tools.ietf.org/html/rfc5849)
@@ -320,4 +320,4 @@ WebClient.Builder webClientBuilder = WebClient.builder()
 ApiClient apiClient = new ApiClient(webClientBuilder);
 ServiceApi serviceApi = client.serviceApi();
 // ...
-```
+```