Make a SORN - content update

The content: 
'You can make a SORN up to 2 calendar months in advance by post, but if you’re doing it this far in advance include a letter explaining why.'

Is misleading. Only people going abroad an leaving their car in the UK can do this.

Replaced with:
'If you're going abroad and leaving your car in the UK you can make a SORN up to 2 calendar months in advance by post. Include a letter explaining why.'

Zen reference: https://govuk.zendesk.com/agent/tickets/889445
Agile Planner: https://www.agileplannerapp.com/boards/105200/cards/8975