try to address ecmarkup lint error

Author: michaelficarra

spec.html

@@ -7200,6 +7200,8 @@ <h1>
         ): a Completion Record
       </h1>
       <dl class="header">
+        <dt>skip global checks</dt>
+        <dd>true</dd>
       </dl>
       <emu-alg>
         1. For each element _iter_ of _iters_, in reverse List order, do