doc: Update URLs of external projects
Branch
------
REL9_4_STABLE
Details
-------
http://git.postgresql.org/pg/commitdiff/ffdf2a20f177b5366e979e07cbfb05fe22edc06f
Modified Files
--------------
doc/src/sgml/external-projects.sgml | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)