更新历史 - 算法基础简介

edit-landing.md, basic/index.md, validator.md

style: format markdown files with remark-lint

fix(basic): update index.md

:fire: remove duplicate line

:wrench: 思想方法 → 算法基础

style: format markdown files with remark-lint

Update index.md

Fixed text format

style: format markdown files with remark-lint

style: update style with remark-lint

Correct some format mistakes

feat: add construction

feat: add 二分、三分、表达式求值

feat: add index for basics and update search toc

feat: add 枚举

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