Catch up with English version:

1.122 -> 1.125 authors.ent
1.306 -> 1.328 contrib/chapter.sgml
1.45 -> 1.51 eresources/chapter.sgml
1.93 -> 1.96 mirrors/chapter.sgml
1.46 -> 1.51 pgpkeys/chapter.sgml
1.162 -> 1.165 staff/chapter.sgml

Submitted by: Shun SUZUKI <si006@ccm.gs.niigata-u.ac.jp>
Reviewed by: hrs
References: [doc-jp 7788]