press - pr: Correct some markup mistaeks and a typo in Christian's last

Log Message:
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Correct some markup mistaeks and a typo in Christian's last name, and change
latin1 characters to HTML entities. In passing, use curly instead of straight
double quotes.

Use absolute URLs even for www.postgresql.org pages.

Modified Files:
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pr/releases/8.0/es:
presskit80.html (r1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/press/pr/releases/8.0/es/presskit80.html.diff?r1=1.1&r2=1.2)