Update 10.temporary-m3p2/16.waves/20.n2/10.concept-of-wave-and-wave-phenomena-2/20.overview/cheatsheet.fr.md

Update 10.temporary-m3p2/16.waves/20.n2/10.concept-of-wave-and-wave-phenomena-2/20.overview/cheatsheet.fr.md

Update 10.temporary-m3p2/16.waves/20.n2/05.waves-introduction/20.waves-learning-pattern/cheatsheet.fr.md