更新历史 - 凸包

feat: add code block tabs

feat(geometry, misc): add semantic label for paragraph

fix(convex-hull.md): 错误的习题排版与标题嵌套 (#4260)

fix(geometry/convex-hull): 修正错误 (#4056)

refactor(geometry/3d), feat(geometry/convex-hull): move convex (#4048)

chore: upgrade remark-clang-format (#3806)

feat(graph, geometry): add Python example (#3572)

Update convex-hull.md

apply bot

fix: spaces and textit

update convex, scanning, half-plane, nearest points, random incremental, 2d, polar coordinate

将//的后面统一加上空格

/problemnew/show -> /problem

www.luogu.org -> www.luogu.com.cn

Update convex-hull.md

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