[css-color-5] start preparing for publication

Author: svgeesus

css-color-5/Overview.bs

@@ -7,7 +7,7 @@ Group: csswg
 TR: https://www.w3.org/TR/css-color-5/
 ED: https://drafts.csswg.org/css-color-5/
 Work Status: exploring
-!Delta Spec: yes
+Delta Spec: yes
 Editor: Chris Lilley, W3C, chris@w3.org, w3cid 1438
 Editor: Una Kravets, Google, https://una.im, w3cid 115525
 Editor: Lea Verou, Invited Expert, http://lea.verou.me/about, w3cid 52258
@@ -168,7 +168,7 @@ Selecting the most contrasting color: the ''color-contrast()'' function {#colorc
 			* <span class="swatch" style="--color: wheat"></span> wheat (#f5deb3), the background, has relative luminance 0.749
 			* <span class="swatch" style="--color: tan"></span> tan (#d2b48c) has relative luminance 0.482 and contrast ratio 1.501
 			* <span class="swatch" style="--color: sienna"></span> sienna (#a0522d) has relative luminance 0.137 and contrast ratio 4.273
-		
+
 		Suppose myAccent has the value <span class="swatch" style="--color: #b22222"></span>  #b22222:
 			* #b22222 has relative luminance 0.107 and contrast ratio 5.081
 			* <span class="swatch" style="--color: #d2691e"></span> #d2691e has relative luminance 0.305 and contrast ratio 2.249