[css3-syntax] Editorial: tiny punctuation fix.

Author: SimonSapin

css3-syntax/Overview.html

@@ -2750,7 +2750,7 @@ <h2 id=parsing><span class=secno>5. </span> Parsing</h2>
     semicolon, at-keyword,
     <p class=note> This means that the following tokens emitted by the
      tokenizer stage will <strong>not</strong> appear in the stylesheet
-     object: function, bad-string, bad-url, cdo, cdc, [, ], (, ), {. and }.
+     object: function, bad-string, bad-url, cdo, cdc, [, ], (, ), {, and }.
 
    <dt><dfn id=function>function</dfn>
 

css3-syntax/Overview.src.html

@@ -2225,7 +2225,7 @@ <h2>
 				],
 				(,
 				),
-				{.
+				{,
 				and }.
 
 		<dt><dfn>function</dfn>