Update README to remove unnecessary step
Update README to remove unnecessary step

Don't need to put Client ID into webconfig of TodoListService.

AzureADSamples/NativeClient-DotNet,Azure-Samples/active-directory-dotnet-native-desktop,AzureADSamples/NativeClient-DotNet,AzureADSamples/NativeClient-DotNet,Azure-Samples/active-directory-dotnet-native-desktop,Azure-Samples/active-directory-dotnet-native-desktop