image performance

[estelle]

Porting content from /en-US/docs/Web/Media/images/aspect_ratio_mapping so we can get rid of that page.
Some info was really out of date.

[github-actions]

Preview URLs

• /en-US/docs/Learn/Performance/Multimedia
• /en-US/docs/Web/API/SVGImageElement/decoding
• /en-US/docs/Web/HTML/Element/img
• /en-US/docs/Web/Progressive_web_apps/Responsive/Graphics_for_responsive_sites

Flaws (6)

Note! 2 documents with no flaws that don't need to be listed. 🎉

URL: /en-US/docs/Web/Progressive_web_apps/Responsive/Graphics_for_responsive_sites
Title: Graphic design for responsive sites
Flaw count: 3

• broken_links:
  • Can't resolve /en-US/docs/Web/Apps/app_layout
  • Can't resolve /en-US/docs/Web/Guide/CSS/Getting_started/Color
  • Can't resolve /en-US/docs/Web/CSS/

---

URL: /en-US/docs/Learn/Performance/Multimedia
Title: Multimedia: Images
Flaw count: 3

• broken_links:
  • Link points to the page it's already on
  • Can't resolve /en-US/docs/Learn/Performance/Fonts
  • Can't resolve /en-US/docs/Learn/Performance/Mobile

(this comment was updated 2022-11-16 07:31:18.680617)