Adding headers to the bottom of a table

page in question:
http://developer.postgresql.org/docs/postgres/sql-keywords-appendix.html#KEYWORDS-TABLE
(aka doc/src/sgml/keywords.sgml)

I'd like to add column "headers" to the *bottom* of the sql keywords
table, but I can't simply add a duplicate <thead> at the bottom. Is
there a way to accomplish this? Would people be against the idea?

Robert Treat
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