New document (#5299)

* add new doc (#5175)

Co-authored-by: dreamer6680 <146868355@qq.com>

* Test docs (#5235)

* fix: change the page of doc

* chore: add new dependencies, update global styles/layout, optimize docs, add Feishu & GitHub icons, update API examples

* fix: docs/index 404 not found

* Update environment variable names, optimize styles, add new API routes, fix component styles, adjust documentation, and update GitHub and Feishu icons

* update readme

* feat: add a linkfastgpt compontent

* feat: update new doc

* fix:remove unuse page and redirect homepage to docs (#5288)

* fix：remove some unuse doc

* fix: redirect homepage to doc

* git ignore

* fix:navbar to index (#5295)

* sidbar

* fix: navtab unlight (#5298)

* doc

---------

Co-authored-by: dreamer6680 <1468683855@qq.com>
Co-authored-by: dreamer6680 <146868355@qq.com>

document/content/docs/introduction/development/upgrading/462.mdx

@@ -0,0 +1,27 @@
+---
+title: V4.6.2(包含升级脚本)
+description: FastGPT V4.6.2
+---
+
+## 1。执行初始化 API
+
+发起 1 个 HTTP 请求 (`{{rootkey}}` 替换成环境变量里的 `rootkey`，`{{host}}` 替换成自己域名)
+
+1. https://xxxxx/api/admin/initv462
+
+```bash
+curl --location --request POST 'https://{{host}}/api/admin/initv462' \
+--header 'rootkey: {{rootkey}}' \
+--header 'Content-Type: application/json'
+```
+
+初始化说明：
+1. 初始化全文索引
+
+## V4.6.2 功能介绍
+
+1. 新增 - 全文索引（需配合 Rerank 模型，在看怎么放到开源版，模型接口比较特殊）
+2. 新增 - 插件来源（预计4.7/4.8版本会正式使用）
+3. 优化 - PDF读取
+4. 优化 - docx文件读取，转成 markdown 并保留其图片内容
+5. 修复和优化 TextSplitter 函数