Create and publish release notes for GOV.UK Prototype Kit v13.0.0

[NoraGDS]

What

Create release notes for GOV.UK Prototype v13.0.0 (breaking release)

The completion of the step by step work means all outstanding issues from the accessibility audit have been fixed and we can update our accessibility statement to say the site meets the WCAG standard.

Why

To tell users about:

• update to step by step (as an extension)

• remove docs

• remove support for IE8

• remove v6/backwards compatibility

• remove jQuery

• changing how users copy templates #1389 - monitor progress

• GOV.UK Frontend v4.2.0 release

• internal changes: simplify updating process and move stuff out of app folder

• replace keypather package with lodash.get

• simplify updating process

• move stuff out of app folder

Who needs to work on this

Technical writer aka content designer

Who needs to review this

Team

When

Draft ready by end Monday 25 July Review by end Thursday 28 July Finalise Monday 1 August Release for ?????

Done when

• [x] Content designer drafts release notes
• [ ] team contributes to release notes
• [ ] a developer or interaction designer finalises release notes
• [ ] PR raised to update release notes in Changelog