doc(doc/changes): update changelog
doc(doc/changes): update changelog

fpvandoorn/lean,leanprover-community/lean,digama0/lean,fpvandoorn/lean,dselsam/lean,digama0/lean,leanprover-community/lean,digama0/lean,dselsam/lean,dselsam/lean,fpvandoorn/lean,dselsam/lean,fpvandoorn/lean,dselsam/lean,digama0/lean,digama0/lean,fpvandoorn/lean,leanprover-community/lean,dselsam/lean,leanprover-community/lean,digama0/lean,leanprover-community/lean,leanprover-community/lean,fpvandoorn/lean