[css-values-5][editorial] use correct autolink syntax for absolute-co…

…lor-functions; reference latest definition of <color>

css-values-4/Overview.bs

@@ -19,7 +19,8 @@ Include Can I Use Panels: yes
 <pre class='link-defaults'>
 spec: css2; type: property; text: border-collapse
 spec: css-color-4; type: value; text: currentcolor
-spec: css-color-4; type: type; text: <color>
+spec: css-color-5; type: type; text: <color>
+spec: css-color-5; type:type; text: <absolute-color-function>
 spec: css-shapes-1; type: function; text: rect();
 spec: css-sizing-3; type: property;
  text: min-width
@@ -2924,7 +2925,7 @@ Functional Notations</h2>
 
  The [=math functions=] are defined below.
  Other [=functional notations=] are defined in their own modules;
- for example the [=absolute-color-function|color functions=] are defined in [[CSS-COLOR-4]].
+ for example the <<absolute-color-function>>s are defined in [[CSS-COLOR-5]].
 
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