Improving the README.md file
Improving the README.md file

Azure-Samples/active-directory-dotnet-webapp-roleclaims,AzureADSamples/WebApp-RoleClaims-DotNet,Azure-Samples/active-directory-dotnet-webapp-roleclaims,AzureADSamples/WebApp-RoleClaims-DotNet,AzureADSamples/WebApp-RoleClaims-DotNet,Azure-Samples/active-directory-dotnet-webapp-roleclaims