Seminar 5 Bug Fix

[lijiarui]

• Add author profile to author.yml
• change Youtube video title and description, eg: https://www.youtube.com/watch?v=yR9_-CpUEIM&list=PL8hd9KDTdarDJdNcARh5nInSkurE2wDXu
• Choose a suitable cover for the video
• 'BOT5.Club - Conversational User Interface-咨询场景中下一代AI人机交互-基于 Authing 识别 Wechaty 中的微信用户可行性 2020#05(全)' --> '2021#05'. It's year 2021!

[scy1207-git]

Fixed on video desc