Fix p tag which should have been an a

fixes #571.

Author: gkellogg

spec/latest/json-ld-api/index.html

@@ -2944,11 +2944,11 @@ <h3>Algorithm</h3>
               be the last <a>container mapping</a> value to be checked as it
               is the most generic.</li>
             <li class="changed">
-              If <p>processing mode</p> is <code>json-ld-1.1</code> and value does not contain the key <code>@index</code>, append
+              If <a>processing mode</a> is <code>json-ld-1.1</code> and value does not contain the key <code>@index</code>, append
               <code>@index</code> and <code>@index@set</code> to <var>containers</var>.
             </li>
             <li class="changed">
-              If <p>processing mode</p> is <code>json-ld-1.1</code> and value contains only the key <code>@value</code>, append
+              If <a>processing mode</a> is <code>json-ld-1.1</code> and value contains only the key <code>@value</code>, append
               <code>@language</code> and <code>@language@set</code> to <var>containers</var>.
             </li>
             <li>If <var>type/language value</var> is <code>null</code>, set it to