fix: Repeat reference to Solid Notifications Protocol in a sentence

Fixes repeat reference to Solid Notifications Protocol in the discussion about Authentication and Authorization in the same sentence in the Protocol section.

Author: CxRes

protocol.html

@@ -614,7 +614,7 @@ <h2 property="schema:name">Protocol</h2>
 
               <p id="json-ld-format">This specification uses JSON-LD [<cite><a class="bibref" href="#bib-json-ld11">JSON-LD11</a></cite>] as the preferred data format, and <code>https://www.w3.org/ns/solid/notifications-context/v1</code> as a URI for the JSON-LD context and as a value of the <code>profile</code> parameter used for content negotiation.</p>
 
-              <p id="authentication-authorization">This specification does not require a specific authentication and authorization mechanism to be used with the Solid Notification Protocol. Implementations are encouraged to use existing approaches, such as those described in the Solid Protocol sections on <cite><a href="https://solidproject.org/TR/protocol#authentication" rel="cito:discusses">Authentication</a></cite> and <cite><a href="https://solidproject.org/TR/protocol#authorization" rel="cito:discusses">Authorization</a></cite> [<cite><a class="bibref" href="#bib-solid-protocol">SOLID-PROTOCOL</a></cite>].</p>
+              <p id="authentication-authorization">This specification does not require the use of a specific authentication and authorization mechanism. Implementations are encouraged to use existing approaches, such as those described in the Solid Protocol sections on <cite><a href="https://solidproject.org/TR/protocol#authentication" rel="cito:discusses">Authentication</a></cite> and <cite><a href="https://solidproject.org/TR/protocol#authorization" rel="cito:discusses">Authorization</a></cite> [<cite><a class="bibref" href="#bib-solid-protocol">SOLID-PROTOCOL</a></cite>].</p>
 
               <section id="discovery" inlist="" rel="schema:hasPart" resource="#discovery">
                 <h3 property="schema:name">Discovery</h3>