[selectors] Rename 'Format Syntax' to 'Grammar'.

Author: tabatkins

selectors/Overview.html

@@ -469,8 +469,7 @@ <h2 class="no-num no-toc" id=contents>Table of Contents</h2>
    <li><a href="#specificity"><span class=secno>15. </span> Calculating a
     selector's specificity</a>
 
-   <li><a href="#formal-syntax"><span class=secno>16. </span> Formal
-    Syntax</a>
+   <li><a href="#grammar"><span class=secno>16. </span> Grammar</a>
 
    <li><a href="#profiling"><span class=secno>17. </span> Profiles</a>
     <ul class=toc>
@@ -3931,7 +3930,8 @@ <h2 id=specificity><span class=secno>15. </span> Calculating a selector's
    Style Attributes</a>. <a href="#CSSSTYLEATTR"
    rel=biblioentry>[CSSSTYLEATTR]<!--{{CSSSTYLEATTR}}--></a>
 
-  <h2 id=formal-syntax><span class=secno>16. </span> Formal Syntax</h2>
+  <h2 id=grammar><span class=secno>16. </span><a id=formal-syntax></a>
+   Grammar</h2>
 
   <p> The grammar below defines the syntax of Selectors. It is applied to a
    stream of tokens, as returned by the tokenizer defined in <a

selectors/Overview.src.html

@@ -2853,8 +2853,8 @@ <h2 id="specificity">
   <p class="note"><strong>Note:</strong> The specificity of the styles
   specified in an HTML <code>style</code> attribute <a href="http://www.w3.org/TR/css-style-attr/#interpret">is described in CSS Style Attributes</a>. [[CSSSTYLEATTR]]
 
-<h2 id="formal-syntax">
-Formal Syntax</h2>
+<h2 id="grammar"><a id="formal-syntax"></a>
+Grammar</h2>
 
   <p>
     The grammar below defines the syntax of Selectors.