Draft: L&R Workflows - Adding notes to multi-year subscription workflow

Why is this change being made?

This change is to add further documentation to the multi-year subscriptions workflow.

The two edits are described in the following table:

Section	Content	Reasoning
Notes section	An explanation of 'Ramp Deals', which is the term used to describe multi-year subscriptions in Zuora and inside the cDot codebase	This may help SEs examine Zuora records and also to diagnose errors inside cDot
See Also	Linked the Internal Sales Definitions Handbook	This may help explain the Sales side of our workflows to SEs

Author Checklist

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• Added a description to this MR explaining the reasons for the proposed change, per say why, not just what
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