Re: pg_upgrade doc uses inconsistent versions within the doc.

On Mon, Sep 18, 2023 at 08:14:04PM +0000, PG Doc comments form wrote:
> The following documentation comment has been logged on the website:
>
> Page: https://www.postgresql.org/docs/16/pgupgrade.html
> Description:
>
> I feel like for readability the pg_upgrade doc should use the same
> old_version and new_version examples when showing examples throughout the
> doc page. 
>
> as an exmaple I'm looking at :
> https://www.postgresql.org/docs/current/pgupgrade.html
>
> in some places the example commands use v9.6 and v16. (see step 8)
>
> but in other places it mixes versions v9.5 and v9.6 (see step 11 sub step 8)

Good point.  I came up with the attached patch.  It uses 9.6 and current