[doc] There`s no text color config in the CirclePacking chart api document

[xuanhun]

Version

1.2.0

Link to Minimal Reproduction

https://www.visactor.io/vchart/option/circlePackingChart#label.style.text(string%7Cnumber%7Cstring%5B%5D)

Steps to Reproduce

https://www.visactor.io/vchart/option/circlePackingChart#label.style.text(string%7Cnumber%7Cstring%5B%5D)

Current Behavior

There`s no text color config in the CirclePacking chart api document

Expected Behavior

Add full config of label text

Environment

- OS:
- Browser:
- Framework:

Any additional comments?

No response