Editorial: Move a note at the end of a spec step

Instead of at the front of the next one, which was resulting in some
slightly strange looking rendering.

source

@@ -108927,16 +108927,16 @@ dictionary <dfn dictionary>PromiseRejectionEventInit</dfn> : <span>EventInit</sp
    match</span> given <var>normalizedSpecifier</var>, <var>asURL</var>, and <var>importMap</var>'s
    <span data-x="concept-import-map-imports">imports</span>.</p></li>
 
-   <li><p>If <var>topLevelImportsMatch</var> is not null, then return
-   <var>topLevelImportsMatch</var>.</p></li>
-
    <li>
+    <p>If <var>topLevelImportsMatch</var> is not null, then return
+    <var>topLevelImportsMatch</var>.</p>
+
     <p class="note">At this point, <var>specifier</var> wasn't remapped to anything by
     <var>importMap</var>, but it might have been able to be turned into a URL.</p>
-
-    <p>If <var>asURL</var> is not null, then return <var>asURL</var>.</p>
    </li>
 
+   <li><p>If <var>asURL</var> is not null, then return <var>asURL</var>.</p></li>
+
    <li><p>Throw a <code>TypeError</code> indicating that <var>specifier</var> was a bare specifier,
    but was not remapped to anything by <var>importMap</var>.</p></li>
   </ol>