Followup to #13358 asof-join

[jreback]

xref #13358

• need full signature on deprecated ordered_merge
• pd.merge_asof() for asof-style time-series joining, see :ref:here <whatsnew_0182.enhancements.asof_merge> for highlites

[jreback]

closed by 013c2ce

[jreback]

@jorisvandenbossche

In merging.rst

I don't understand why there are blank lines between the args for pd.merge, but not for pd.concat

They look exactly the same to me.

[jorisvandenbossche]

I think it is because of the .. versionadded:: 0.17.0 that is after 'indicator' kwarg for merge. Because of that there is a blank line within that bullet point, leading to sphinx to use more spacing between all bullet points of that list.
So maybe just add the "New in version 0.17.0." as plain text there without needing a blank line.