Create documentation explaining networking options

[davidkelliott]

User Story

This section of the environment networks file - https://github.com/ministryofjustice/modernisation-platform/blob/main/environments-networks/hmpps-development.json#L28

Is poorly documented and contains things which users often need like adding additional endpoints.
(hint for list of valid endpoint services use aws ec2 describe-vpc-endpoint-services )

User Type(s)

MP users and engineers

Value

Better documentation makes it easier for users and engineers to resolve issues.

Assumptions / Hypothesis / Questions / Unknowns

Definition of done

• user docs have been updated
• another team member has reviewed
• tests are green

Reference

How to write good user stories