Request to be a member of prometheus-operator community

[dongjiang1989]

Hello, Members of prometheus-operator community. I've learnt a lot from the community last several monthes and made a few improvements by fixing some bugs and adding featrures，and now I hope to join prometheus-operator community and contribute more.

Here are main pull requests merged in prometheus-operator community:

https://github.com/prometheus-operator/prometheus-operator/pulls?q=is%3Apr+author%3Adongjiang1989+is%3Aclosed