[css-color-5] another inline issue

Author: svgeesus

css-color-5/Overview.bs

@@ -206,6 +206,8 @@ are copied across from the first color.
 
 </div>
 
+Issue(#4735): <a href="https://github.com/w3c/csswg-drafts/issues/4735">When mixing hue, there are two ways round the hue range</a>
+
 <div class="example">
 	This example produces the mixture of
 	the same two colors as the previous example