- Re-phrase a line referring to a previous section; after some
re-arrangements, that section is no longer a "previous" section.
- Replace spatial terminology ("bottom") with sequential terminology
("end")
- Add note on font enumeration without the Font Access API
- Acknowledge testing in grayscale but emphasize that it isn't enough.
- Move defense of link underlines to just after the section on custom
colors, since it's more relevant to it.
- Add xkcd image into the page instead of just linking, since the linked
page content is an image that doesn't include a transcript or
descriptive alt-text.
- Trivial rephrasings
