BUG: `swaplevel` docstring incorrectly indented at Examples

[TheNeuralBit]

• I have checked that this issue has not already been reported.

• I have confirmed this bug exists on the latest version of pandas.

• I have confirmed this bug exists on the master branch of pandas.

Reproducible Example

import pandas as pd
help(pd.DataFrame.swaplevel)]
# Examples section is improperly indendented:

Help on function swaplevel in module pandas.core.frame:

swaplevel(self, i: 'Axis' = -2, j: 'Axis' = -1, axis: 'Axis' = 0) -> 'DataFrame'
    Swap levels i and j in a :class:`MultiIndex`.
    
    Default is to swap the two innermost levels of the index.
    
    Parameters
    ----------
    i, j : int or str
        Levels of the indices to be swapped. Can pass level name as string.
    axis : {0 or 'index', 1 or 'columns'}, default 0
                The axis to swap levels on. 0 or 'index' for row-wise, 1 or
                'columns' for column-wise.
    
    Returns
    -------
    DataFrame
        DataFrame with levels swapped in MultiIndex.
    
    Examples
            --------
            >>> df = pd.DataFrame(
            ...     {"Grade": ["A", "B", "A", "C"]},
            ...     index=[
            ...         ["Final exam", "Final exam", "Coursework", "Coursework"],
            ...         ["History", "Geography", "History", "Geography"],
            ...         ["January", "February", "March", "April"],
            ...     ],
            ... )
            >>> df
...

Issue Description

Examples section is indented, starting in the middle of the header. This doesn't seem to affect docs generation (see https://pandas.pydata.org/docs/reference/api/pandas.DataFrame.swaplevel.html), but it does look odd when you view help in a Python or Ipython shell. Maybe Jupyter as well? I'm not sure.

Expected Behavior

Examples section should all be indented at the same level.

Installed Versions

pandas 1.3.4

[TheNeuralBit]

I'd like to assign this to myself, not sure how.