DOC: Fix typos in documentation #5584

Job	Run time
pytest on windows	6m 39s
Check code style issues	33s
Build & verify package	14s
pytest on 3.8 (crypto-lib: cryptography)	5m 14s
pytest on 3.9 (crypto-lib: cryptography)	5m 26s
pytest on 3.10 (crypto-lib: cryptography)	5m 18s
pytest on 3.11 (crypto-lib: cryptography)	4m 51s
pytest on 3.12 (crypto-lib: cryptography)	6m 40s
pytest on 3.13 (crypto-lib: cryptography)	6m 56s
pytest on 3.8 (crypto-lib: pycryptodome)	5m 34s
pytest on 3.8 (crypto-lib: none)	5m 9s
Combine & check coverage.	21s
	52m 55s

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