Fix the link to the HTML release notes in the text release notes to point to the latest 3.0.x relnotes.
Fix the link to the HTML release notes in the text release notes to point to the latest 3.0.x relnotes.

GNOME/bugzilla-gnome-org-upstream,oyang/bugzilla,GNOME/bugzilla-gnome-org-upstream,oyang/bugzilla,GNOME/bugzilla-gnome-org-upstream,bugzilla/bugzilla,edmorley/bugzilla,talatdayyan/bugzilla,talatdayyan/bugzilla,dylanwh/bugzilla,ikpcdoctor/git-clone---branch-release-5.0-stable-https-git.mozilla.org-bugzilla-bugzilla-,talatdayyan/bugzilla,dylanwh/bugzilla,talatdayyan/bugzilla,edmorley/bugzilla,oyang/bugzilla,ikpcdoctor/git-clone---branch-release-5.0-stable-https-git.mozilla.org-bugzilla-bugzilla-,GNOME/bugzilla-gnome-org-upstream,dklawren/bugzilla,edmorley/bugzilla,bugzilla/bugzilla,talatdayyan/bugzilla,bugzilla/bugzilla,dylanwh/bugzilla,dylanwh/bugzilla,dklawren/bugzilla,dylanwh/bugzilla,dklawren/bugzilla,dklawren/bugzilla,ikpcdoctor/git-clone---branch-release-5.0-stable-https-git.mozilla.org-bugzilla-bugzilla-,ikpcdoctor/git-clone---branch-release-5.0-stable-https-git.mozilla.org-bugzilla-bugzilla-,GNOME/bugzilla-gnome-org-upstream,oyang/bugzilla,ikpcdoctor/git-clone---branch-release-5.0-stable-https-git.mozilla.org-bugzilla-bugzilla-,bugzilla/bugzilla,oyang/bugzilla,edmorley/bugzilla,dklawren/bugzilla,edmorley/bugzilla