Describe the issue linked to the documentation

Hello! I frequently use sklearn.metrics.pairwise.haversine_distances to estimate distances on the globe. The example on the linked page uses a geographic example, but it does not specify whether geographic coordinates are in (latitude, longitude) or (longitude, latitude) form. From context, one can infer that the correct order is (latitude,longitude); however, it would be useful to explicitly state the order.

This is my first issue submission; please let me know if there is something more that might be useful for resolution!

Suggest a potential alternative/fix

There are two ways that this could be resolved:

1. Include a short note stating that geographic coordinates should be input as (latitude,longitude)
2. Include a comment in the example code describing the coordinate order.