[pgpool-committers: 5647] pgpool: Doc: add restriction entry

[Takuma Hoshiai]

Doc: add restriction entry

master branch's commit(ea1998b7350de6882bea25fc3634c4f7673adbde) backport to 3.6-4.0.

Branch
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V3_6_STABLE

Details
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https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=6658352a1c6406bc04215f5b92dce2d780393564

Modified Files
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doc.ja/src/sgml/restrictions.sgml | 48 +++++++++++++++++++++++++++++++++++++++
doc/src/sgml/restrictions.sgml    | 32 ++++++++++++++++++++++++++
2 files changed, 80 insertions(+)