[css-color] bikeshed update

--HG--
extra : rebase_source : e5ad46708719071780e0515b01e57cb9ba1a62a8

Author: tabatkins

css-color/Overview.bs

@@ -2507,7 +2507,7 @@ APIs for Parsing and Manipulating Colors</h2>
 
 		<li>
 			It's explicitly designed to be easy to extend with new methods and new color types,
-			and gives guidance to help you do it correctly (see <a section href="#api-extending"></a>).
+			and gives guidance to help you do it correctly (see [[#api-extending]]).
 	</ul>
 
 <h3 id='api-RGBColor'>
@@ -2518,7 +2518,7 @@ The RGBColor Object</h3>
 	(that is, capable of being converted into a roughly equivalent RGB color).
 	As a result, it's always possible to convert a UA-defined color class
 	(and any properly-designed author-defined color classes,
-		see <a section href="#api-extending"></a>)
+		see [[#api-extending]])
 	into an equivalent <a idl>RGBColor</a> instance.
 	This fact is used to aid in automatic handling of several methods common to all color classes.
 
@@ -3022,7 +3022,7 @@ The CMYKColor Class</h3>
 			construct an instance of the <a idl>CMYKColor</a> class
 			with attributes initialized to represent that color
 			converted to CMYK,
-			per <a section href="#cmyk-rgb"></a>.
+			per [[#cmyk-rgb]].
 
 			Otherwise, throw an XXXError.
 
@@ -3052,7 +3052,7 @@ The CMYKColor Class</h3>
 			that the <a idl for>CMYKColor</a> instance represents.
 
 			Note: The <a idl for>CMYKColor</a> class's c, m, y, k, and a attributes have a normal range of 0 to 1.
-			Its fallback attribute is always an RGBColor, or null (indicating it should convert itself to an RGBColor per <a section href="#cmyk-rgb"></a>).
+			Its fallback attribute is always an RGBColor, or null (indicating it should convert itself to an RGBColor per [[#cmyk-rgb]]).
 
 		<dt><dfn attribute>stringifiers</dfn> <span attribute-info for="CMYKColor/stringifiers"></span>
 		<dd>
@@ -3452,7 +3452,7 @@ The CSSColor Object</h3>
 	representing that value;
 	and <a idl>forward()</a>,
 	which is a helper function for adding new methods to all color classes
-	(see <a section href="#api-adding-methods"></a> for more detail on using this function).
+	(see [[#api-adding-methods]] for more detail on using this function).
 
 	<div class='example'>
 		The most common use of this interface is to parse color strings into an appropriate color object.
@@ -3563,7 +3563,7 @@ The CSSColor Object</h3>
 
 			Note: For this to work correctly,
 			author-defined color classes must have certain methods and behavior,
-			as defined in <a section href="#api-extending"></a>.
+			as defined in [[#api-extending]].
 			If an author-defined class violates these expectations,
 			defaulted methods might work incorrectly
 			or throw errors.