New site: establish image standards

[martinwake]

What

Regularise how images are named, produced and uploaded.

Why

We don't have a documented standard practice for how we produce or publish images on the design system website.

Done when

Things that could be included in the standard for images:

• Format (png, jpeg, gif?)
• Resolution and size
• Naming convention
• figcaption use (and convention for writing this)
• Style of illustration or screenshot

Done when:

• standards are documented
• existing images conform to the standard

Outcomes

Who needs to know about this

Design system team