docs: auto generate Dragonfly cli/api docs via code

Signed-off-by: pouchrobot <pouch-dev@list.alibaba-inc.com>

Author: pouchrobot

CONTRIBUTORS

@@ -34,6 +34,7 @@ Guangwen Feng <fenggw-fnst@cn.fujitsu.com>
 Haines Chan <zhinhai@gmail.com>
 Haosdent Huang <haosdent@gmail.com>
 henry.hj <henry.hj@antfin.com>
+Hongbo Qin <hongbo.qin.1001@gmail.com>
 Hu Shuai <hus.fnst@cn.fujitsu.com>
 huaxiao <huaxiao@jd.com>
 Hui Zhao <176425810@qq.com>