owin tutorial: minor fix with claim types
owin tutorial: minor fix with claim types

Annyv2/docs,hamzawi06/docs,auth0/docs,Catografix/docs,auth0/docs,khorne3/docs,Catografix/docs,jeffreylees/docs,miparnisari/docs,sandrinodimattia/docs,yvonnewilson/docs,khorne3/docs,Catografix/docs,yvonnewilson/docs,yvonnewilson/docs,hamzawi06/docs,auth0/docs,Annyv2/docs,jeffreylees/docs,khorne3/docs,sandrinodimattia/docs,jeffreylees/docs,sandrinodimattia/docs,Annyv2/docs,hamzawi06/docs