Fix broken link to PaN search API

Commit fe68e8d5 fixed the script for checking whether the PaN search
API is working.  Unfortunately it failed to fix the broken links on the
webpage.

This patch fixes those links on the webpage

open-data-resources.html

@@ -66,7 +66,7 @@ title: Open data resources
           %}<td>{%
         endif %}
         <div class="tooltip-cont">
-          <a href="{{ facility.odr.pan-search-api.link }}/datasets/count" class="trigger-tooltip">{%
+          <a href="{{ facility.odr.pan-search-api.link }}/Datasets/count" class="trigger-tooltip">{%
             if facility.odr.pan-search-api.status == "Active"
               %}Datasets: {{ facility.odr.pan-search-api.dataset_count | thousands_separated }}{%
               assign total_dataset_count = total_dataset_count | plus: facility.odr.pan-search-api.dataset_count %}{%