[css-text-decor-4] Make text-underline-offset not a sub-property of text-decoration, since it's probably better for it to cascade independently.

Author: fantasai

css-text-decor-4/Overview.bs

@@ -167,14 +167,14 @@ Text Underline Offset: the 'text-underline-offset' property</h3>
 			Value: auto | <<length>>
 			Initial: auto
 			Applies to: all elements
-			Inherited: no
+			Inherited: yes
 			Percentages: N/A
 			Media: visual
 			Computed value: as specified
 			Animatable: no
 	</pre>
 
-	This property, which is also a <a>sub-property</a> of the 'text-decoration' shorthand,
+	This property, which is <em>not</em> a <a>sub-property</a> of the 'text-decoration' shorthand,
 	sets the offset of underlines from their initial position.
 
 	Values have the following meanings: