Can't set cancellationToken

[waleed1ace]

The current latest nuget version doesn't have the following method available:
public async Task SendNotificationAsync(PushSubscription subscription, string payload = null,
Dictionary options = null, CancellationToken cancellationToken=default)

But it's shown on the main readme page:
https://github.com/web-push-libs/web-push-csharp#sendnotificationasyncpushsubscription-payload-vapiddetailsgcmapikeyoptions-cancellationtoken

[coryjthompson]

Thanks,

The newest version has been uploaded to nuget with the CancellationToken. (v1.0.12)