Update readme.md
Update readme.md

AzureADSamples/WebApp-WebAPI-OpenIdConnect-AspNet5,Azure-Samples/active-directory-dotnet-webapp-webapi-openidconnect-aspnet5,Azure-Samples/active-directory-dotnet-webapp-webapi-openidconnect-aspnet5,Azure-Samples/active-directory-dotnet-webapp-webapi-openidconnect-aspnet5,AzureADSamples/WebApp-WebAPI-OpenIdConnect-AspNet5,AzureADSamples/WebApp-WebAPI-OpenIdConnect-AspNet5