Fix typo

ED/protocol.html

@@ -757,7 +757,7 @@ <h3 property="schema:name">HTTP Client</h3>
 
                   <p about="" id="client-authentication-different-credentials" rel="spec:requirement" resource="#client-authentication-different-credentials"><span property="spec:statement">When a <span rel="spec:requirementSubject" resource="#Client">client</span> receives a response with a <code>403</code> or <code>404</code> status code, the client <span rel="spec:requirementLevel" resource="spec:MAY">MAY</span> repeat the request with different credentials.</span></p>
 
-                  <p> about="" id="client-content-type-includes" rel="spec:requirement" resource="#client-content-type"><span property="spec:statement"><span rel="spec:requirementSubject" resource="#Client">Clients</span> <span rel="spec:requirementLevel" resource="spec:MUST">MUST</span> use the <code>Content-Type</code> HTTP header in <code>PUT</code>, <code>POST</code>, and <code>PATCH</code> requests [<cite><a class="bibref" href="#bib-rfc9110">RFC9110</a></cite>].</span> [<a href="https://github.com/solid/specification/issues/70#issuecomment-547924171" rel="cito:citesAsSourceDocument">Source</a>]</p>
+                  <p about="" id="client-content-type-includes" rel="spec:requirement" resource="#client-content-type"><span property="spec:statement"><span rel="spec:requirementSubject" resource="#Client">Clients</span> <span rel="spec:requirementLevel" resource="spec:MUST">MUST</span> use the <code>Content-Type</code> HTTP header in <code>PUT</code>, <code>POST</code>, and <code>PATCH</code> requests [<cite><a class="bibref" href="#bib-rfc9110">RFC9110</a></cite>].</span> [<a href="https://github.com/solid/specification/issues/70#issuecomment-547924171" rel="cito:citesAsSourceDocument">Source</a>]</p>
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