Added a line to the release checklist document about updating the wiki release links.
These are for the combined release notes pages at http://wiki.nmr-relax.com/Relax_releases,
http://wiki.nmr-relax.com/Relax_release_descriptions,
http://wiki.nmr-relax.com/Relax_release_metadata, http://wiki.nmr-relax.com/Relax_release_features,
http://wiki.nmr-relax.com/Relax_release_changes, http://wiki.nmr-relax.com/Relax_release_bugfixes,
http://wiki.nmr-relax.com/Relax_release_links.
