Fixes#24809
The docs site uses baseUrl='/docs/' but the <img> tags in sessions.md
and cli.md referenced images at /img/docs/... which resolves to a 404.
The static files are served at /docs/img/docs/... instead.
Before: <img src="/img/docs/session-recap.svg"> → 404
After: <img src="/docs/img/docs/session-recap.svg"> → 200
Also fixes cli-layout.svg which had the same issue.