美人鱼图插件
pip3 install sphinxcontrib-mermaid
插件网站：https://www.cnpython.com/pypi/sphinxcontrib-mermaid
PHP插件
pip3 install sphinxcontrib-phpdomain
插件网站：https://www.cnpython.com/pypi/sphinxcontrib-phpdomain
Excel 插件
pip3 install sphinxcontrib-excel
插件网站：https://www.cnpython.com/pypi/sphinxcontrib-excel
UML插件
pip3 install sphinxcontrib-plantuml
