📝docs: 更新文档内容，优化示例代码和图片

在文档中更新了数学公式的排版，移除了多余的图片引用，确保内容的简洁性和可读性。同时，添加了新的代码示例，展示了vitepress的配置用法，提升了文档的实用性和用户体验。

Author: 1411430556

docs/文档/5-示例展示.md

@@ -84,14 +84,4 @@ $$ x = {-b \pm \sqrt{b^2-4ac} \over 2a} $$
 | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------- |
 | $\nabla \cdot \vec{\mathbf{B}}  = 0$                                                                                                                                      | divergence of $\vec{\mathbf{B}}$ is zero                                               |
 | $\nabla \times \vec{\mathbf{E}}\, +\, \frac1c\, \frac{\partial\vec{\mathbf{B}}}{\partial t}  = \vec{\mathbf{0}}$                                                          | curl of $\vec{\mathbf{E}}$ is proportional to the rate of change of $\vec{\mathbf{B}}$ |
-| $\nabla \times \vec{\mathbf{B}} -\, \frac1c\, \frac{\partial\vec{\mathbf{E}}}{\partial t} = \frac{4\pi}{c}\vec{\mathbf{j}}    \nabla \cdot \vec{\mathbf{E}} = 4 \pi \rho$ | _wha?_                                                                                 |
-
-![效果图](https://i.theojs.cn/logo/Lumen-Logo.webp)
-
-![浅色模式{.light-only}](https://i.theojs.cn/logo/github.svg)
-
-![深色模式{.dark-only}](https://i.theojs.cn/logo/github-dark.svg)
-
-![深色模式](https://i.theojs.cn/logo/github-dark.svg#dark)
-
-![浅色模式](https://i.theojs.cn/logo/github.svg#light)
+| $\nabla \times \vec{\mathbf{B}} -\, \frac1c\, \frac{\partial\vec{\mathbf{E}}}{\partial t} = \frac{4\pi}{c}\vec{\mathbf{j}}    \nabla \cdot \vec{\mathbf{E}} = 4 \pi \rho$ | _wha?_                                                                                 |

docs/文档/8-api-examples.md

@@ -1,6 +1,4 @@
 ---
-title: api-examples
-order: 7
 outline: deep
 ---
 
@@ -49,3 +47,38 @@ const { site, theme, page, frontmatter } = useData()
 ## More
 
 Check out the documentation for the [full list of runtime APIs](https://vitepress.dev/reference/runtime-api#usedata).
+
+::: code-group
+
+```js [config.js]
+/**
+ * @type {import('vitepress').UserConfig}
+ */
+const config = {
+  // ...
+}
+
+export default config
+```
+
+```ts [config.ts]
+import type { UserConfig } from 'vitepress'
+
+const config: UserConfig = {
+  // ...
+}
+
+export default config
+```
+
+:::
+
+![效果图](https://i.theojs.cn/logo/Lumen-Logo.webp)
+
+![浅色模式{.light-only}](https://i.theojs.cn/logo/github.svg)
+
+![深色模式{.dark-only}](https://i.theojs.cn/logo/github-dark.svg)
+
+![深色模式](https://i.theojs.cn/logo/github-dark.svg#dark)
+
+![浅色模式](https://i.theojs.cn/logo/github.svg#light)