[css-syntax] Update changes section.

Author: tabatkins

css-syntax/Overview.html

@@ -2730,10 +2730,11 @@ <h3 id=changes-from-css-2.1-tokenizer><span class=secno>4.5. </span>
     token is mentioned in other specs). The only consequence of this is that
     comments can no longer be inserted between the sign and the number.
 
-   <li> Some flags have been added for SVG-compatible tokenizing, so that a
-    single state machine can be used for both "vanilla" and SVG CSS parsing.
+   <li> Scientific notation is supported for numbers/percentages/dimensions
+    to match SVG, per WG resolution.
 
-   <li> Scientific notation is supported for numbers, per WG resolution.
+   <li> The column token has been added, to keep Selectors parsing in
+    single-token lookahead.
   </ol>
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css-syntax/Overview.src.html

@@ -2043,12 +2043,12 @@ <h3>
 			The only consequence of this is that comments can no longer be inserted between the sign and the number.
 
 		<li>
-			Some flags have been added for SVG-compatible tokenizing,
-			so that a single state machine can be used for both "vanilla" and SVG CSS parsing.
+			Scientific notation is supported for numbers/percentages/dimensions to match SVG,
+			per WG resolution.
 
 		<li>
-			Scientific notation is supported for numbers,
-			per WG resolution.
+			The column token has been added,
+			to keep Selectors parsing in single-token lookahead.
 
 	</ol>