[css-values-4] animation-iteration-count uses 'infinite', not 'infinity'. #7204

Author: fantasai

css-values-4/Overview.bs

@@ -4363,7 +4363,7 @@ Range Checking</h3>
 	Note: By definition,
 	±∞ are outside the allowed range for any property,
 	and will clamp to the minimum/maximum value allowed.
-	Even for properties that explicitly allow ''infinity'' as a keyword value,
+	Even properties that can explicitly represent infinity as a keyword value,
 	such as 'animation-iteration-count',
 	will end up clamping ±∞,
 	as [=math functions=] can't resolve to keyword values;