title: newtonsoft.json vs microsoft.aspnetcore.mvc.newtonsoft.json - what is the difference?
body: <p>what is the difference between these two libraries?</p>
  
  <p><a href="https://www.nuget.org/packages/Microsoft.AspNetCore.Mvc.NewtonsoftJson/" rel="noreferrer">https://www.nuget.org/packages/Microsoft.AspNetCore.Mvc.NewtonsoftJson/</a>
  vs
  <a href="https://www.nuget.org/packages/Newtonsoft.Json/" rel="noreferrer">https://www.nuget.org/packages/Newtonsoft.Json/</a></p>