* docs(controller): add chinese docs about persistent-unique-broker-id
1. add chinese docs about persistent-unique-broker-id
* docs(controller): optimize style in docs: persistent-unique-broker-id.md
1. optimize style in docs: persistent-unique-broker-id.md
* docs(controller): remove test in docs: persistent-unique-broker-id.md
1. remove test in docs: persistent-unique-broker-id.md