add code tab and modified translation.#2817

Merged

bishabosha merged 2 commits intoscala:mainfrom

benluo:zh-cn/overviews/scala3-book/ca-type-classes

Sep 8, 2023

Commits on May 25, 2023

add code tab and modified translation.
benluo
committed

Commits on May 26, 2023

modified according to comments.
benluo
committed