doc: Fix broken links to DocBook wiki
Branch
------
REL9_1_STABLE
Details
-------
http://git.postgresql.org/pg/commitdiff/1b4359b55d8fe32a54460c3ea00567a2fafa6b9c
Modified Files
--------------
doc/src/sgml/docguide.sgml | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)