Add instructions for setting up documentation tool chain on Mac OS X

Branch
------
master

Details
-------
http://git.postgresql.org/pg/commitdiff/26a6267226cd4ff84040e4bf4b0d0a7fd1b5258c

Modified Files
--------------
doc/src/sgml/docguide.sgml |   11 +++++++++++
1 files changed, 11 insertions(+), 0 deletions(-)

pgsql-committers by date

Next:	From: Heikki Linnakangas	Date: 2012-08-23 09:00:12
	Subject: pgsql: Fix typo in example.
Previous:	From: Tom Lane	Date: 2012-08-23 03:56:46
	Subject: pgsql: Remove overly-pessimistic statement about constraint exclusion.