docs: add anchors and fix a few small things #587

Job	Run time
lint / files	1m 42s
lint / files	1m 42s
test / Fast tests (jammy, amd64)	4m 36s
test / Fast tests (jammy, amd64)	4m 36s
test / Slow tests (noble, 3.10)	6m 54s
test / Slow tests (noble, 3.10)	6m 54s
test / Minimum dependencies (all tests)	6m 34s
test / Minimum dependencies (all tests)	6m 34s
test / Fast tests (noble, amd64)	5m 27s
test / Fast tests (noble, amd64)	5m 27s
test / Slow tests (macos-14-large, 3.10)	3m 9s
test / Slow tests (macos-14-large, 3.10)	3m 9s
test / Fast tests (macos-13)	9m 25s
test / Fast tests (macos-13)	9m 25s
test / Fast tests (macos-14-large)	6m 18s
test / Fast tests (macos-14-large)	6m 18s
test / Fast tests (windows-2019)	34s
test / Fast tests (windows-2019)	10m 16s
test / Fast tests (windows-2022)	8m 50s
test / Fast tests (windows-2022)	8m 50s
	1h 56m 40s

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