Fix children reference

dom.bs

@@ -4488,7 +4488,7 @@ dom-Range-extractContents, dom-Range-cloneContents -->
  <a for=ShadowRoot>declarative</a> to true.
 
  <li><p>If the <i>clone children flag</i> is set, <a lt="clone a node">clone</a> all the
- <a>children</a> of <var>node</var>'s <a for=Element>shadow root</a> and <a>append</a> the
+ <a for=tree>children</a> of <var>node</var>'s <a for=Element>shadow root</a> and <a>append</a> the
  resulting clones to <var>copy</var>'s <a for=Element>shadow root</a>, with <var>document</var> as
  specified, and the <i>clone children flag</i> set.
  </ol>
@@ -6933,7 +6933,7 @@ a boolean <var>delegatesFocus</var>, and a boolean <var>slotAssignment</var>:
  is false, then <a>throw</a> an "{{NotSupportedError!!exception}}" {{DOMException}}.
 
  <li><p>Otherwise, <a for=/>remove</a> all of <var>element</var>'s
- <a for=Element>shadow root</a>'s <a>children</a>, in <a>tree order</a>, and return.
+ <a for=Element>shadow root</a>'s <a for=tree>children</a>, in <a>tree order</a>, and return.
 
  <p class=note>This means that if multiple declarative shadow roots are contained within a single
  shadow host, only the last one will remain.