Improve the wording of the mustard.

index.html

@@ -1123,7 +1123,7 @@ <h3>Working with  Unicode Normalization</h3>
     <section id="spec_n11n" class="subtopic">
 	<h4>Specifying Unicode Normalization</h4>
 
-	<p class="advisement" id="text_n11n_specification"><a class="self" text="#text_n11n_specification">&#x200B;</a>Specifications that specify comparison or matching of strings SHOULD specify the appropriate note or warning regarding Unicode normalization.</p>
+	<p class="advisement" id="text_n11n_specification"><a class="self" text="#text_n11n_specification">&#x200B;</a>Specifications that perform comparison or matching of string values SHOULD specify the appropriate note or warning regarding Unicode normalization.</p>
 
     <p>The use or adoption of Unicode Normalization in a specification is usually part of defining how <a href="#string_match_steps">matching</a> takes place in a given format or protocol. To help specification authors and implementers understand some of the complexity involved, the Internationalization Working Group has developed a document describing the considerations for the matching and comparison of strings: <cite class="link"><a href="https://www.w3.org/TR/charmod-norm/">Character Model for the World Wide Web: String Matching</a></cite> [[CHARMOD-NORM]].</p>