[css-color] please please link to the right spec dammit

Author: Chris Lilley

css-color-4/Overview.bs

@@ -16,6 +16,10 @@ Repository: w3c/csswg-drafts
 Ignored Terms: stacking context, double, octet
 </pre>
 
+<pre class='ignored-specs'>
+spec:css-color-3
+</pre>
+
 <pre class="link-defaults">
 spec:css-color-4; type:descriptor; for:@color-profile; text:src
 spec:css-color-4; type:dfn; text:colorspace

css-color-5/Overview.bs

@@ -16,7 +16,12 @@ Abstract: This module extends CSS Color [[css-color-4]] to add color modificatio
 Repository: w3c/csswg-drafts
 </pre>
 
+<pre class='ignored-specs'>
+spec:css-color-3
+</pre>
+
 <pre class="link-defaults">
+spec:css-color-4; type:dfn; text:color
 spec:css-color-4; type:dfn; text:colorspace
 spec:css-color-4; type:dfn; text:gamut
 </pre>