update readme

README.md

@@ -99,7 +99,7 @@ for r in results:
 - (optional) restinio used for the REST API.
 - (optional) jsoncpp 1.7.4-3+, used for the REST API.
 - Build tested with GCC 7+ (GNU/Linux, Windows with MinGW), Clang/LLVM (GNU/Linux, Android, macOS, iOS).
-- Build tested with Microsoft Visual Studio 2017, 2019, 2021
+- Build tested with Microsoft Visual Studio 2017, 2019, 2022
 
 ## Contact