pgsql: doc: Add a note on PO editors

doc: Add a note on PO editors

While PO files can be edited in any text editor, specialized tools for
translation editing can be quite helpful with automating tasks etc. Add
a small note about PO editors to encourage new translators to research
which tool works best for them.

Reviewed-by: Bruce Momjian <bruce@momjian.us>
Discussion: /messages/by-id/163490116698.684.10398197970578456928@wrigleys.postgresql.org

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/a340359a4f9bed54e0af67dd90050c13e0976fb6

Modified Files
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doc/src/sgml/nls.sgml | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)