Miscellany.

[kivikakk]

• Update homepage back to GitHub.
• Bump deunicode so we don't depend on a yanked crate.
• Fix a warning in an example.
• Appease Dependabot.

[github-actions]

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
./bench.sh ./comrak-504bb41	324.8 ± 2.4	319.6	328.9	2.90 ± 0.02
./bench.sh ./comrak-main	327.9 ± 3.6	324.1	334.3	2.93 ± 0.03
./bench.sh ./pulldown-cmark	112.0 ± 0.5	111.2	113.0	1.00
./bench.sh ./cmark-gfm	118.8 ± 1.0	116.5	122.2	1.06 ± 0.01
./bench.sh ./markdown-it	484.9 ± 1.9	482.1	490.1	4.33 ± 0.02

Run on Mon Apr 29 15:05:54 UTC 2024