pgsql: Update link for pllua

Update link for pllua

Author: Daniel Gustafsson <daniel@yesql.se>
Discussion: /messages/by-id/A05874AE-8771-4C61-A24E-0B6249B8F3C2@yesql.se

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/b4d5b458e6fb4c861f92888753deea6a5005a68d

Modified Files
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doc/src/sgml/external-projects.sgml | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)