docs: fixed typo and uprgade section title
docs: fixed typo and uprgade section title

the upgrade procedure is valid for all the version lower then 0.5

leophys/libreant,leophys/libreant,leophys/libreant,insomnia-lab/libreant,insomnia-lab/libreant,insomnia-lab/libreant,insomnia-lab/libreant,leophys/libreant