adjusted insertion location is never null

Author: noamr

source

@@ -144796,12 +144796,12 @@ document.body.appendChild(text);
    <li><p>Set <var>insertionLocation</var> to the <span>adjusted insertion location</span> given
    <var>insertionLocation</var>.</p></li>
 
-   <li><p>Let <var>pi</var> be a new <code>ProcessingInstruction</code> node whose <span
+   <li><p>Create a new <code>ProcessingInstruction</code> node whose <span
    data-x="concept-pi-target">target</span> is <var>target</var>, <span
    data-x="concept-cd-data">data</span> is <var>data</var>, and <span>node document</span> is the
    same as that of the node in which the <var>insertionLocation</var> finds itself.</p>
 
-   <li><p>Insert <var>pi</var> at <var>insertionLocation</var>.</p></li>
+   <li><p>Insert the newly created node at <var>insertionLocation</var>.</p></li>
   </ol>
   </div>