Added source of example taken from SDW-BP

dcat/index.html

@@ -2255,7 +2255,7 @@ <h2>Documenting conformance to standards</h2>
             <h3>Conformance to a standard</h3>
             <p>The use of <a href="http://dublincore.org/documents/dcmi-terms/#terms-conformsTo"><code>dct:conformsTo</code></a> and 
 	    <a href="http://dublincore.org/documents/dcmi-terms/#terms-Standard"><code>dct:Standard</code></a> is a well-known pattern 
-            to represent the conformance to a standard. The following example declares a fictional <code>a:Dataset</code> 
+            to represent the conformance to a standard. The following example, directly mutuated from [[SDW-BP]] (<a data-cite="SDW-BP#ex-geodcat-ap-dataset-conformance-with-specification">Example 51</a>), declares a fictional <code>a:Dataset</code> 
 	    conformant to the EU INSPIRE Regulation on interoperability of spatial data sets and services (<a href="http://data.europa.eu/eli/reg/2014/1312/oj">"Commission Regulation (EU) No 1089/2010 
 	    of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards 
 	    interoperability of spatial data sets and services"</a>).</p>