Merge pull request #120 from Mira190/main

remove redundant doc, fix math formula display issue, align edit butt…

Author: Mira190

app/docs/[...slug]/page.tsx

@@ -68,7 +68,7 @@ export default async function DocPage({ params }: Param) {
     <>
       <DocsPage toc={page.data.toc}>
         <DocsBody>
-          <div className="mb-6 flex flex-col gap-3 border-b border-border pb-6 md:mb-8 md:flex-row md:items-center md:justify-between">
+          <div className="mb-6 flex flex-col gap-3 border-b border-border pb-6 md:mb-8 md:flex-row md:items-start md:justify-between">
             <h1 className="text-3xl font-extrabold tracking-tight md:text-4xl">
               {page.data.title}
             </h1>

app/docs/ai/recommender-systems/wangshusen_recommend_note/wangshusen_recommend_note_retrieval.mdx

@@ -1,4 +1,4 @@
----
+---
 title: "王树森推荐系统学习笔记_召回"
 description: ""
 date: "2025-09-22"
@@ -54,7 +54,7 @@ $$
 
 $$
 sim(i_1, i_2) = \frac{\sum_{v \in \mathcal{V}} like(v, i_1) \cdot like(v, i_2)}
-{\sqrt{\sum_{u_1 \in \mathcal{W}_1} like^2(u_1, i_1)} \cdot \sqrt{\sum_{u_2 \in \mathcal{W}_2} like^2(u_2, i_2)}}\
+{\sqrt{\sum_{u_1 \in \mathcal{W}_1} like^2(u_1, i_1)} \cdot \sqrt{\sum_{u_2 \in \mathcal{W}_2} like^2(u_2, i_2)}}
 $$
 
 #### ItemCF 召回的完整流程