Change inline note to block note in Create Term Definition step 16.

For #241.

Author: gkellogg

index.html

@@ -1619,9 +1619,9 @@ <h3>Algorithm</h3>
         <li>Set the <a>reverse property</a> flag of <var>definition</var>
           to <code>false</code>.</li>
         <li class="changed">If <var>value</var> contains the <a>entry</a> <code>@id</code> and its value
-          neither equals <var>term</var> nor is <code>null</code>
-          <span id="ctd-id-null" class="note">If `null`, the term is not used for IRI expansion, but is
-            retained to be able to detect future redefinitions of this term.</span>:
+          neither equals <var>term</var> nor is <code>null</code>:
+          <div id="ctd-id-null" class="note">If `null`, the term is not used for IRI expansion, but is
+            retained to be able to detect future redefinitions of this term.</div>
           <ol>
             <li>If the value associated with the <code>@id</code> <a>entry</a> is not a <a>string</a>, an
               <a data-link-for="JsonLdErrorCode">invalid IRI mapping</a>