I found that humhub and many other websites have an official style doc website like : https://www.humhub.org/docs/guide-README.html
how to develop it? Is there any other YII2 extension for the doc site implementation or I can only copy the css and html code from the yiiframework.com 's source code through the web browser.
Not sure about you mean with "[color=#1C2837][size=2]extension for the doc site implementation". The page in your link seems just bootstrap styles. [/size][/color]
[color=#1C2837][size=2]Btw, if you mean Yii2 api/guide docs, in the case you wish to contribute, you probably is looking for this: [/size][/color][color="#1c2837"][size=2]http://www.yiiframework.com/doc-2.0/ext-apidoc-index.html[/size][/color]
Thanks for your reply.
https://www.humhub.org/docs/guide-README.html is just a bootstrap style. I only want to a extension to build up such a
backend management tool.
I will try your suggestion to use API documentation generator to see whether it is the extension I want.
Another extension http://www.yiiframework.com/extension/yii2-admin/
can also provide me a guide style website. Maybe this is the thing I need.