[css-text-4] Fix a grammar issue in line 5934 - https://drafts.csswg.org/css-text-4/#text-wrap (w3c#8379)

Author: peterfritz

css-text-4/Overview.bs

@@ -5931,7 +5931,7 @@ Text Wrap Settings: the 'text-wrap' property</h3>
 
 	<!-- add a sample prioritization algorithm -->
 
-	Note: The ''text-wrap/wrap'' value is will typically map
+	Note: The ''text-wrap/wrap'' value will typically map
 	to Web browsers’ speedy legacy line breaking,
 	which has so far used first-fit/greedy algorithms
 	that can often give sub-optimal results.