v0.17.3

What's Changed

• docs: README quality-of-life pass (collapsible examples, quick start, nav) by @TMHSDigital in #63
• ci: enforce the README example count in validate-counts by @TMHSDigital in #64
• fix: complete the gallery quality pass — turntable regression, three old-era restages by @TMHSDigital in #65

Full Changelog: v0.17.2...v0.17.3