Pandas version checks

• I have checked that the issue still exists on the latest versions of the docs on main here

Location of the documentation

Example: https://pandas.pydata.org/docs/reference/api/pandas.Series.dt.floor.html

Documentation problem

Throughout the docs the explanation of a function is often limited only to a circular sentence that repeats the verb that names the function and nothing else. Eg in the example of pandas.Series.dt.floor it basically says "it does floor" and the details of the docs are restricted to the individual options and outcomes after that.

Suggested fix for documentation

In the example of floor it should first say in a richer sentence what floor actually does. It doesn't have to be anything big. I won't write an example of that because the docs didn't tell me what floor does.