Describe the current behavior / 问题描述 (Mandatory / 必填)

mindspore.dataset.vision.c_transforms.RandomColor页面存在格式问题，缺少括号

Environment / 环境信息 (Mandatory / 必填)

• Hardware Environment(Ascend/GPU/CPU) / 硬件环境:

Please delete the backend not involved / 请删除不涉及的后端:
/device ascend

• Software Environment / 软件环境 (Mandatory / 必填):
  -- MindSpore version (e.g.,r1.6 commit_id=xxxx) : commit_id = ''[sha1]:4cf848ff,[branch]:(HEAD,origin/r1.7,r1.7)''
  -- Python version (e.g., Python 3.7.5) :Python 3.7.5
  -- OS platform and distribution (e.g., Linux Ubuntu 16.04):Ubuntu 18.04
  -- GCC/Compiler version (if compiled from source):

• Excute Mode / 执行模式 (Mandatory / 必填)(PyNative/Graph):

Please delete the mode not involved / 请删除不涉及的模式:
/mode graph

Related testcase / 关联用例 (Mandatory / 必填)

test_ms_usability_api_0001

Steps to reproduce the issue / 重现步骤 (Mandatory / 必填)

1. check https://www.mindspore.cn/docs/api/zh-CN/master/api_python/dataset_vision/mindspore.dataset.vision.c_transforms.RandomColor.html#mindspore.dataset.vision.c_transforms.RandomColor

Describe the expected behavior / 预期结果 (Mandatory / 必填)

补上缺少的括号，格式正确

Related log / screenshot / 日志 / 截图 (Mandatory / 必填)

Special notes for this issue/备注 (Optional / 选填)