updating the samples readme
updating the samples readme

wesmc7777/azure-notificationhubs-samples,Azure/azure-notificationhubs-samples,Azure/azure-notificationhubs-samples,wesmc7777/azure-notificationhubs-samples,cicorias/azure-notificationhubs-samples,Azure/azure-notificationhubs-samples,Azure/azure-notificationhubs-samples,wesmc7777/azure-notificationhubs-samples,Azure/azure-notificationhubs-samples,Azure/azure-notificationhubs-samples,wesmc7777/azure-notificationhubs-samples,cicorias/azure-notificationhubs-samples,cicorias/azure-notificationhubs-samples,wesmc7777/azure-notificationhubs-samples,cicorias/azure-notificationhubs-samples,wesmc7777/azure-notificationhubs-samples,Azure/azure-notificationhubs-samples,cicorias/azure-notificationhubs-samples,cicorias/azure-notificationhubs-samples,Azure/azure-notificationhubs-samples,Azure/azure-notificationhubs-samples