[css-pseudo-4][editorial] Fixed typo in example

[SebastianZ]

This adds the missin word "styled" to the examples.

Fixes #9023

[LarryLACa]

Flowing the inserted text at the right margin was tricky.
because of the long hyphenated terms like first-line and pseudo-element,
which may or may not break and wrap on the right at the '-',
when pushed to the right by the 'styled' insertion flow.

The #9024 fix, inserting 'styled' and extending that line on the right
without page width wrap, seems to extend the line
past the right margin implied by the preceding lines.

Can you give me a link to the updateddraft spec file,
so we can see the end result visually?

[LarryLACa]

I found the Editors Draft page:
https://drafts.csswg.org/css-pseudo-4/
with the displayed visuals of Example 2.
The repaired 'be styled by' lines are too long.
Their right margin wrap is inconsistent with the preceding lines.

See my rework here:
main...LarryLACa:csswg-drafts:patch-1

[SebastianZ]

You're right. I didn't check the line lengths of the examples.

I've merged your patch in #9031. Thanks a lot, @LarryLACa!

Sebastian