Fix build

Author: lukewarlow

dom.bs

@@ -6417,7 +6417,7 @@ steps:
 
 <ol>
  <li><p>Let <var>validValue</var> be the result of calling
- <a>Get Trusted Types-compliant attribute value</a> for <var>attribute</var>, with
+ <a abstract-op>get Trusted Types-compliant attribute value</a> for <var>attribute</var>, with
  <var>element</var> and <var>value</var>. [[!TRUSTED-TYPES]]
 
  <li><p>Set <var>attribute</var>'s <a for=Attr>value</a> to <var>validValue</var>.