Update README.md

Author: sgrampone

README.md

@@ -41,9 +41,10 @@ This repository contains projects for .NET and .NET Core. It is organized as fol
 # How to compile
 
 ## Requirements
-Visual Studio 2019 or dotnet SDK >= 3.1 
+Visual Studio 2019 or dotnet SDK >= 3.1
 - .Net framework 4.7 since GeneXus 17 Upgrade 1 & .Net Framework 4.6 for previous versions.
 - .Net framework 4.7 is required for GeneXus SFTP Module
+- dotnet SDK 5.0 since GeneXus 17 Upgrade 5
 
 # Instructions