Sounds like a fine idea. But personally I would prefer it without the <> around the it, just a url on a line by itself. I think it would be clearer, look cleaner, and be easier to select to copy/paste elsewhere.
Autoconf already has a way to register the package home page and propagate it, so I used that. That also makes it easier to change it (see http: -> https:) or have third parties substitute their own contact information without destroying translations.
While at it, I also did the same refactoring for the bug reporting address (which was also recently changed, so this is a bit late, but who knows what the future holds).
-- Peter Eisentraut http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services