add intro and anchor links to ODR page

open-data-resources.html

@@ -2,7 +2,8 @@
 title: Open data resources
 ---
 <h1>{{ page.title }}</h1>
-<h2>Discipline-specific repositories</h2>
+<p>Here we list all PaN-related open data resources we know of, either <a href="#gotodomain">domain-specific resources</a> or <a href="#gotofacility">open data portals from our individual facilities</a>. We limit this list to data hosting repositories, excluding aggregators like the <a href='{{ "./outcomes.html#Search" | relative_url }}'>PaNOSC data portal</a> or the EOSC search portal.</p>
+<h2 id="gotodomain">Domain-specific repositories</h2>
 
 <div class="container">
   {% assign sorted_odrs = site.data.odrs | sort: 'short-name' %}
@@ -22,7 +23,7 @@ title: Open data resources
   {% endfor %}
 </div>
 
-<h2>PaN facilities repositories</h2>
+<h2 id="gotofacility">PaN facilities repositories</h2>
 <table>
   <tr>
     <th>Facility</th>