[css-color-hdr][editorial] Note incomplete adaptation, needs to be worked into the spec

Author: svgeesus

css-color-hdr-1/Overview.bs

@@ -983,7 +983,11 @@ Predefined color spaces for HDR: {#predefined-HDR}
 		<span class="swatch" style="--color: white"></span> color(jzazbz 0.22207 -0.00016 -0.00012)
 		</pre>
 	</div>
-	<!-- unclear why az and bz are not zero here. Is this the crosstalk term? -->
+	<!-- 
+		unclear why az and bz are not zero here. Is this the crosstalk term? 
+		No, it is due to incomplete adaptation. See 
+		https://github.com/color-js/color.js/issues/613#issuecomment-2666872133
+	-->
 
 <dfn export>JzCzHz</dfn> {#JzCzHz}
 -----------------