It is unclear how to show value tooltips in slider when dragging a thumb

# Docs feedback

## How can we improve Base UI documentation?

Provide a clear and concise description of the issue you're experiencing. If applicable, provide screenshots and/or videos.

In mui components example here https://mui.com/material-ui/react-slider/#minimum-distance I can see that it is very easy to show thumb value as it moves. There is not such option listed in https://base-ui.com/react/components/slider

Trying to wrap Thumb into Tooltip didn't work for me - positioning was completely wrong.

It would be useful to have an example as this seems like a very common usecase. the slider is kind of useless without this.