docs: auto generate Dragonfly cli/api docs via code

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

CONTRIBUTORS

@@ -46,6 +46,8 @@ liuyuxing <starnopg@gmail.com>
 longfei.shang@daocloud.io <longf_shang@163.com>
 lowzj <zj3142063@gmail.com>
 lurenjia528 <37833630+lurenjia528@users.noreply.github.com>
+Nguyen Hai Truong <truongnh@fujitsu.com>
+Nguyen Hai Truong <truongnh@vn.fujitsu.com>
 pouchrobot <pouch-dev@list.alibaba-inc.com>
 Ryan McCormick <rmccorm4@binghamton.edu>
 SataQiu <1527062125@qq.com>
@@ -71,6 +73,7 @@ yunfeiyangbuaa <yunfeiyang@buaa.edu.cn>
 yuxiaobo <yuxiaobogo@163.com>
 zhangyue <zy675793960@yeah.net>
 ZhiQiang Gu <43897640+yunfeiyanggzq@users.noreply.github.com>
+Zhou Hao <zhouhao@cn.fujitsu.com>
 zhouchencheng <zhouchencheng@bilibili.com>
 zhouhaibing089 <zhouhaibing089@gmail.com>
 zhoulin xie <zhoulin.xie@daocloud.io>