fixed double 'to'

Author: himorin

css-color-adjust-1/Overview.bs

@@ -392,7 +392,7 @@ Properties Affected by Forced Colors Mode {#forced-colors-properties}
 		</div>
 
 	Additionally:
-	* 'box-shadow' and 'text-shadow' compute to to ''box-shadow/none''
+	* 'box-shadow' and 'text-shadow' compute to ''box-shadow/none''
 	* 'background-image' computes to ''background-image/none''
 		unless the original value contains a ''url()'' function
 	* 'color-scheme' computes to ''light dark''