Fix notification create command

[richardW8k]

re: HS#303986

This fixes some issues with the docblock for the notification create command, the main being that the synopsis is for a different command so using the --notification-json option resulted in a parameter error.

Once the synopsis was fixed I noticed that the form id was assigned as the notification name instead of the value provided for the name option. This was fixed by getting the value from $args[1] instead of $args[0].

Testing Instructions

• With master enter wp gf form notification create 1 'the name' --notification-json='{"subject":"the subject","message":"the message","from":"{admin_email}","fromName":"the from name"}' replacing 1 with the ID of your test form
• Find a parameter error occurs
• Switch to this branch
• Repeat command
• Find notification is created and "the name" is assigned as the name of the notification