Editorial: use cite element in IPR section

Author: annevk

index.bs

@@ -15061,9 +15061,9 @@ The following conformance classes are defined by this specification:
     language binding.
 
 
-<p boilerplate=ipr>This Living Standard includes material copied from W3C’s
-<a href=https://www.w3.org/TR/2016/REC-WebIDL-1-20161215/>WebIDL [sic] Level 1</a>, which is
-available under the
+<p boilerplate=ipr>This Living Standard includes material copied from W3C's
+<a href=https://www.w3.org/TR/2016/REC-WebIDL-1-20161215/><cite>WebIDL [sic] Level 1</cite></a>,
+which is available under the
 <a href=https://www.w3.org/Consortium/Legal/2015/copyright-software-and-document>W3C Software and Document License</a>.