Scikit-learn: Spacing between parameters or class attributes and their type description

# Documentation style bug

## Summary
For scikit-learn docs, there is no space between the parameter or attribute name and their type description. Moreover, they are formatted in the same manner so it is difficult to distinguish what part is the parameter/attribute name and what part is the type description.

## Actual style
For example: [KMeans](https://devdocs.io/scikit_learn/modules/generated/sklearn.cluster.kmeans#sklearn.cluster.KMeans)

## Expected style
There should perhaps be a separator like a colon between the parameter/attribute name and the type description.

## Other information
OS: Ubuntu 20.04.1
Browser: Chrome Version 101.0.4951.64 (Official Build) (64-bit)

使用链接的 KMeans 文档页面作为复现案例，并检查其参数和属性描述是如何渲染的。追踪负责显示名称和类型的文档样式或渲染入口。完成标准是名称和类型在 scikit-learn 文档中彼此分离且在视觉上可区分。

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