Cleaner left-hand table-of-contents for API reference

Looking at the HATS RTD, the menu options in the left-hand-side for the API reference have a lot of unnecessary duplication:

API reference
└── hats
    ├── hats.catalog
    ├── hats.inspection
    └── ...

I would really love if we could have it be simpler:

hats API reference
├── catalog
├── inspection
└── ... 

this includes the package name in the top-level, and omits the package name from the submodule names.

I don't even know if sphinx/autoapi supports this, but I can dream, right?

首先定位 Read the Docs 文档中生成 API 参考的 Sphinx/AutoAPI 配置。检查其选项是否可以生成所请求的顶层包名称以及更短的子模块标签。当渲染后的左侧导航显示“hats API reference”，并包含“catalog”和“inspection”等条目，且不重复包名称时，即表示完成。