[pgpool-committers: 5711] pgpool: Doc: add useful link how to create pcp.conf in the pcp referenc

[Tatsuo Ishii]

Doc: add useful link how to create pcp.conf in the pcp reference page.

Also fix some typos.

Branch
------
V4_0_STABLE

Details
-------
https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=ad4323b92732ecb58ec0326e7a8fa2d2311a857f

Modified Files
--------------
doc.ja/src/sgml/reference.sgml |  3 ++-
doc/src/sgml/reference.sgml    | 19 ++++++++++++-------
2 files changed, 14 insertions(+), 8 deletions(-)