docs: update

Author: maxchang3

README.md

@@ -58,8 +58,12 @@ All frontmatter options are optional.
 - **`markmap`** : Correspond to the [`IMarkmapJSONOptions`](https://markmap.js.org/api/interfaces/markmap-view.IMarkmapJSONOptions.html) in the markmap project. For more details, please refer to [`jsonOptions`](https://markmap.js.org/docs/json-options#option-list).
   - alias: **`options`** (for backward compatibility)
 
+
+<details>
+
+<summary>Difference between `markmap` and `options`</summary>
+
 > [!TIP] 
-> **Difference between `markmap` and `options`**
 > 
 > - **`markmap` (from markmap-lib)** 
 >   Will be [preprocessed](https://github.com/markmap/markmap/blob/master/packages/markmap-lib/src/plugins/frontmatter/index.ts#L41) (e.g., converting strings to arrays or numbers) and overrides the legacy `options`.
@@ -69,6 +73,8 @@ All frontmatter options are optional.
 > - **`options` (from markmap-universe)** Passed directly to markmap-view.  
 >   - ❌ Not recommended, maintained only for backward compatibility.
 
+</details>
+
 
 #### Tag Options
 

README.zh.md

@@ -56,8 +56,11 @@ markmap:
 - **`markmap`**/**`options`**：对应 markmap 项目中的 [`IMarkmapJSONOptions`](https://markmap.js.org/api/interfaces/markmap-view.IMarkmapJSONOptions.html)。有关更多详细信息，请参考 [`jsonOptions`](https://markmap.js.org/docs/json-options#option-list)。
   - 别名：**`options`**（向后兼容）
 
+<details>
+
+<summary>`markmap` 和 `options` 的区别</summary>
+
 > [!TIP]
-> **`markmap` 和 `options` 的区别**
 > 
 > - **`markmap`（来自 markmap-lib）**  
 >  JSON Options 会被[预处理](https://github.com/markmap/markmap/blob/master/packages/markmap-lib/src/plugins/frontmatter/index.ts#L41)（例如，将字符串转换为数组或数字），并优先覆盖 `options`。  
@@ -68,6 +71,8 @@ markmap:
 >   - ❌ 不推荐使用，仅为向后兼容而保留。
 >
 
+</details>
+
 #### 标签选项
 
 你还可以直接在标签中指定思维导图的高度，默认情况下会根据内容进行计算。