Added section explaining MySQL Portals on the website.

Extracted appendixes "Testimonials" and "Users" to separate files for safe keeping. Should go to web portals.

Docs/section.Testimonials.texi

+@c FIX AGL 20011108 Extracted from manual.texi.
+@c Should only be on website with new submits by webform.
+
+
+@node MySQL Testimonials, Contrib, Users, Top
+@appendix MySQL Testimonials
+
+@cindex MySQL Testimonials
+
+The section 'MySQL Users' contains a lot of different links to
+MySQL users but doesn't provide that much information about how
+they are using MySQL.  @xref{Users}. This section gives you an idea
+of how other MySQL users are using MySQL to solve their problems.
+
+Please note that all new stories are added on the MySQL website,
+@uref{http://www.mysql.com/}.
+Do let us know about @emph{your} success story too!
+
+@itemize @bullet
+@item 
+@strong{Peter Zaitsev of Spylog.ru} writes:
+I think you might be interested in my database size.  The whole database
+is currently on 15 servers and I think it's about 60.000 of tables
+containing about 5.000.000.000 of rows.  My mostly loaded server
+currently holds about 10.000 of tables with 1.000.000.000 of rows in it.
+Hugest tables have about 50.000.000 of rows, and this value will raise
+as soon as I'll move to 2.4 kernel with large files. Currently I have to
+delete much of logs for large sites to hold table sizes in 2Gb.
+
+@item
+