Fix external link to IANA

dcat/index.html

@@ -2255,7 +2255,7 @@ <h3>Class: Role</h3>
             <tr><td class="prop">Usage note:</td><td>Used in a qualified-relation to specify the role of an Entity with respect to another Entity.
             It is recommended that the values be managed as a controlled vocabulary of entity roles such as
             <br/>- <a href="http://registry.it.csiro.au/def/isotc211/DS_AssociationTypeCode">ISO 19115 DS_AssociationTypeCode</a>
-            <br/>- <a href="https://www.iana.org/assignments/link-relation">IANA Registry of Link Relations</a>
+            <br/>- <a href="https://www.iana.org/assignments/link-relations">IANA Registry of Link Relations</a>
             <br/>- DataCite metadata schema [[DataCite]]
             <br/>- <a href="https://id.loc.gov/vocabulary/relators">MARC relators</a> </td></tr>
             </tbody>
@@ -2702,7 +2702,7 @@ <h3>Conformance test results</h3>
   <h2>Qualified relations</h2>
 
   <p>
-    DCAT includes elements to support description of many aspects of datasets and data-services. Nevertheless, additional information is required in order to fully express the semantics of some relationships. An example is that, while Dublin Core [[DC11]] provides the standard roles <b>creator</b>, <b>contributor</b> and <b>publisher</b> for attribution of a resource to a responsible party or agent, there are many other potential roles, see for example the CI_RoleCode values from [[ISO-19115-1]]. Similarly, while Dublin Core and [[PROV-O]] provide some properties to capture relationships between resources, including <b>was derived from</b>, <b>was quoted from</b>, <b>is version of</b>, <b>references</b> and several others, many additional concerns are seen in the list of <a href="http://registry.it.csiro.au/def/isotc211/DS_AssociationTypeCode">ISO 19115 DS_AssociationTypeCodes</a>, the <a href="https://www.iana.org/assignments/link-relation">IANA Registry of Link Relations</a>, the DataCite metadata schema [[DataCite]]
+    DCAT includes elements to support description of many aspects of datasets and data-services. Nevertheless, additional information is required in order to fully express the semantics of some relationships. An example is that, while Dublin Core [[DC11]] provides the standard roles <b>creator</b>, <b>contributor</b> and <b>publisher</b> for attribution of a resource to a responsible party or agent, there are many other potential roles, see for example the CI_RoleCode values from [[ISO-19115-1]]. Similarly, while Dublin Core and [[PROV-O]] provide some properties to capture relationships between resources, including <b>was derived from</b>, <b>was quoted from</b>, <b>is version of</b>, <b>references</b> and several others, many additional concerns are seen in the list of <a href="http://registry.it.csiro.au/def/isotc211/DS_AssociationTypeCode">ISO 19115 DS_AssociationTypeCodes</a>, the <a href="https://www.iana.org/assignments/link-relations">IANA Registry of Link Relations</a>, the DataCite metadata schema [[DataCite]]
     <br/> and the <a href="https://id.loc.gov/vocabulary/relators">MARC relators</a>. While these relations could be captured with additional sub-properties of <code>dct:relation</code>, <code>dct:contributor</code>, etc, this would lead to an explosion in the number of properties, and anyway the full set of potential roles and relationships is unknown.
   </p>
   <p>