Option to set `notification` to `none`?

[pietrop]

First of all thank you soo much for a great module, as made it very straightforward to integrate speechmatics into my project autoEdit.io.

I was wondering if it was possible to change option to set notification to none when creating a transcription job? As at the moment seems to be default to email, and every time I upload something through the module I then get an email notification.

Happy to do a pull request with the change if that makes it easier for you, but could use some pointers on where to make the changes in your index.js file.

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For context some more details from speechmatics API documentation

'notification': (optional) how you would like to be notified of your job finishing (email / none / callback). Defaults to 'email'. e.g., -F 'notification=callback' -F 'callback=http://your_url.com/transcript_callback'

'notification_email_address': (optional) alternative email address to use in the notification. Defaults to email used during registration if this optional argument is unused. Requires notification type to be set to 'email'. e.g -F 'notification_email_address=myalternate@address.com'

'callback': (only if notification is set to callback) if set and notification set to 'callback', the Speechmatics service will make a POST request to this URL when the job completes, including the full JSON transcript in a file attachment (named data_file, accessible for example in JavaScript by request.files.get('data_file')) along with the job id as a parameter (for example, http://www.example.com/transcript_callback?id=1). The URL callback will be attempted with a 10s timeout. If it fails, it will be retried with a 20s timeout and if it fails again, with a 30s timeout. If the URL callback fails three times, an email with an error message including the HTTP return code (if any) will be sent to the user's email address..