URL Fix to avoid the need of a http redirect

The link that was doing http redirect was:

Link at PR Database:
FROM: https://www.FreeBSD.org/cgi/query-pr-summary.cgi?query
TO: https://bugs.freebsd.org/bugzilla/query.cgi

Link at Poudriere resource:
FROM: https://fossil.etoilebsd.net/poudriere/
TO: https://github.com/freebsd/poudriere

The links in the article has been updated to point to the correct URL.

Reviewed by: gabor, bjk
Approved by: gabor
Differential Revision: https://reviews.freebsd.org/D16988