Correcting ActivityPub reference (#127)

Author: pietercolpaert

index.html

@@ -1281,7 +1281,7 @@ <h3 property="schema:name">Informative References</h3>
                 <div datatype="rdf:HTML" property="schema:description">
                   <dl class="bibliography" resource="">
                     <dt id="bib-activitypub">[ACTIVITYPUB]</dt>
-                    <dd><a href="https://www.w3.org/TR/activitypub/" rel="cito:citesAsPotentialSolution"><cite>ActivityPub</cite></a>. Christopher Webber; Jessica Tallon.  W3C. 23 January 2018. W3C Recommendation. URL: <a href="https://www.w3.org/TR/activitypub/">https://www.w3.org/TR/activitypub/</a></dd>
+                    <dd><a href="https://www.w3.org/TR/activitypub/" rel="cito:citesAsPotentialSolution"><cite>ActivityPub</cite></a>. Christine Lemmer-Webber; Jessica Tallon.  W3C. 23 January 2018. W3C Recommendation. URL: <a href="https://www.w3.org/TR/activitypub/">https://www.w3.org/TR/activitypub/</a></dd>
                     <dt id="bib-ldp">[LDP]</dt>
                     <dd><a href="https://www.w3.org/TR/ldp/" rel="cito:citesAsPotentialSolution"><cite>Linked Data Platform 1.0</cite></a>. Steve Speicher; John Arwe; Ashok Malhotra.  W3C. 26 February 2015. W3C Recommendation. URL: <a href="https://www.w3.org/TR/ldp/">https://www.w3.org/TR/ldp/</a></dd>
                     <dt id="bib-odrl-model">[ODRL-MODEL]</dt>