Documentation (and other) updates for 3.29.0 (#1194) #1204

Job	Run time
Build source distribution	11s
Build extra arch aarch64 wheels	41m 26s
Build wheels ubuntu-20.04 (x86_64)	2m 56s
Build wheels ubuntu-20.04 (PyPy)	1m 4s
Build wheels windows-latest (win64)	5m 57s
Build wheels windows-latest (PyPy)	4m 31s
Build wheels macos-latest (all)	7m 18s
Build wheels macos-13 (all)	5m 26s
Build wheels macos-latest (PyPy)	55s
upload_pypi	0s
	1h 9m 44s

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