🚀💻 – format all "<type> referencing" fields with links

[botanize]

Describe the feature you want and how it meets your needs or solves a problem
If the title of a field in the spec contains "ID referencing", then the referenced table is formatted as a link. I'd like the same to happen for "Positive integer referencing", or any other " referencing" title.

For example, in the passenger_events schema the title for "trip_stops_sequence" is "Positive integer referencing stop_visits.trip_stop_sequence", and there is no link to stop_visits in the formatted documentation.

Describe the solution you'd like
We currently format two types of references, "referencing GTFS" and "ID referencing". I'd like to expand "ID referencing" to include at least "[Pp]ositive integer referencing", but ideally I'd like to format any type that's referenced by simply checking for "referencing" instead of "ID referencing". Since the GTFS formatter runs and returns before the ID referencing formatter, it should only be formatting references that are not GTFS references.

Describe alternatives you've considered

Additional context