Added username

nlog.config

<!-- the targets to write to -->
<targets>
  <!-- write logs to file  -->
  <target xsi:type="File" name="allfile" fileName="c:\temp\nlog-all-${shortdate}.log"
          layout="${longdate} | ${uppercase:${level:padding=5}} | ${mdlc:userName} | ${logger} | ${message} ${exception:format=tostring}" />

  <!-- another file log, only own logs. Uses some ASP.NET core renderers -->
  <target xsi:type="File" name="ownFile-web" fileName="c:\temp\nlog-own-${shortdate}.log"
          layout="${longdate} | ${uppercase:${level:padding=5}} | ${mdlc:userName} | ${logger} | ${message} ${exception:format=tostring} | url: ${aspnet-request-url} | action: ${aspnet-mvc-action}" />
</targets>