further correction to biblio link

ippisite/ippidb/templates/biblio_simplelink.html

-<a target="_blank" class="card-link" href="{%if bibliography.source == 'PM' %}https://www.ncbi.nlm.nih.gov/pubmed/{% elif bibliography.source == 'DO' %}https://doi.org/{% else %}https://patentscope.wipo.int/search/en/detail.jsf?docId={% endif %}{{ bibliography.id_source }}">{{ bibliography.id_source }}</a>
+<a target="_blank" class="card-link" href="{{bibliography.get_external_url}}"</a>