[css-color-6][editorial] Correctly link to D65 (from Color 4) and color candidate (this spec). Fix w3c#13317

Author: svgeesus

css-color-6/Overview.bs

@@ -258,7 +258,7 @@ If no target contrast is specified</h4>
 	* ''aaa large'' (or ''large aaa'') computes to ''4.5''
 
 	To find the contrast of a pair of colors,
-	first their CIE Luminance (Y) is calculated relative to a [=D65 whitepoint=].
+	first their CIE Luminance (Y) is calculated relative to a [=D65=] whitepoint.
 	Then the WCAG 2.1 contrast is calculated:
 	contrast = (Y<sub>l</sub> + 0.05) / (Y<sub>d</sub> + 0.05)
 	where Y<sub>d</sub> is the luminance of the darker color in the pair
@@ -270,7 +270,7 @@ If no target contrast is specified</h4>
 
 		<pre class="lang-css">color(display-p3 0.38 0.11 0.05)</pre>
 
-		while the first [=candidate color=] in the list were
+		while the first [=color candidate=] in the list is
 
 		<pre class="lang-css">yellow</pre>