doc update

README.md

@@ -12,7 +12,7 @@ Download release at <https://drive.recolic.net/s/CbtmdPNo6dStX6W>. (Azure Pipeli
 
 Build time: Go 
 
-Runtime: dotnet > 5.0
+Runtime: A computer or something looks like a computer
 
 ## Build
 
@@ -28,6 +28,8 @@ To avoid the annoying login, goto `DevOps -> TopRightCorner -> Settings -> Perso
 then create a new token, select `All accessible organizations`, and allow permission `Packaging/read`. 
 Save the token for future usage. 
 
+> It's ok to use `nuget` instead of dotnet 5.0. Just give my a valid `nuget.config` and openxt is happy!
+
 Then use `dotnet nuget add` to add all sources your need. This is an example: 
 
 ```bash