docs: labels spec update (#6647)

* feat(docs): labels spec update

* feat(docs): labels spec update

* feat(docs): update labels docs

* feat(docs): update labels docs

* fix(text): 删除多余的文档

* docs: resolve conflicts

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Co-authored-by: wb-xcf804241 <wb-xcf804241@alibaba-inc.com>
Co-authored-by: interstellarmt <787982239@qq.com>

Author: 3 people