[pgpool-committers: 4627] pgpool: Update config README file.

[Tatsuo Ishii]

Update config README file.

Branch
------
V3_7_STABLE

Details
-------
https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=7865293217b625a4889629e5c3b87d36cc335aa6

Modified Files
--------------
src/config/README | 44 +++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 43 insertions(+), 1 deletion(-)