更新 'readme.md'

readme.md

@@ -253,4 +253,8 @@ select GROUP_CONCAT(p1.participant_id) as 会话的成员集合,s.* from partici
-- 查询某个议题的消息
select w.* from  muc_messages w ,(
select m.`timestamp` as begin_date,m2.`timestamp` as end_date,t.session_id from topics t,muc_messages m, muc_messages m2 where m.id = t.start_message_id and m2.id = t.end_message_id and  t.session_id = '4d5be29f8ba0413d8658441902b958ff_c7a121954a3a4fae84852fd5668b590d_2'
) s where w.session_id = s.session_id and w.`timestamp` >= s.begin_date and w.`timestamp`<=s.end_date;
) s where w.session_id = s.session_id and w.`timestamp` >= s.begin_date and w.`timestamp`<=s.end_date;
###更改NODE插件数据源在安装完成NODE及配置完成环境变量后执行
    npm config set registry https://registry.npm.taobao.org
    设置完成后执行npm install 即可安装相对于的插件。