fix: improve doc link navigation and tree display

- Fix link resolution with proper relative/absolute path handling
- Improve link styling with underline decoration
- Hide leaf nodes from tree, only show directories
- Fix log file path for packaged app

docs/api/rhi/command-list/set-viewports.md

@@ -0,0 +1,24 @@
+# RHICommandList::SetViewports
+
+```cpp
+virtual void SetViewports(uint32_t count, const Viewport* viewports) = 0;
+```
+
+设置多个视口。
+
+**参数：**
+- `count` - 视口数量
+- `viewports` - 视口数组指针
+
+**示例：**
+
+```cpp
+Viewport viewports[2];
+viewports[0] = {0, 0, 640, 720, 0.0f, 1.0f};
+viewports[1] = {640, 0, 640, 720, 0.0f, 1.0f};
+cmdList->SetViewports(2, viewports);
+```
+
+## 相关文档
+
+- [RHICommandList 总览](command-list.md) - 返回类总览