Introduction of newcomers

[jiajun xie]

Hi, everyone. My name is JiajunXie, I recently subscribed to the mail
list. I graduated from college last year, and now I work in ByteDance.
In the past year, I didn't subscribe to email but just sent messages in
JIRA or GitHub. Maybe I added to your burden, I'm sorry. After that,
welcome to communicate in the mail list