[css-regions-1] Add animation type lines. Add issue pointing at 'continue' property.

Author: fantasai

css-regions-1/Overview.bs

@@ -373,6 +373,7 @@ The 'flow-into' property</h3>
 		Applies To: All elements, but not <a href="https://www.w3.org/TR/selectors/#pseudo-elements">pseudo-elements</a> such as <code>::first-line</code>, <code>::first-letter</code>, <code>::before</code> or <code>::after</code>.
 		Inherited: no
 		Computed Value: as specified
+		Animation type: not animatable
 	</pre>
 
 	<dl>
@@ -560,6 +561,7 @@ The 'flow-from' property</h3>
 		Applies To: Non-replaced <a href="https://www.w3.org/TR/CSS21/visuren.html#block-boxes">block containers</a>. <br/> This might be expanded in future versions of the specification to allow other types of containers to receive flow content.
 		Inherited: no
 		Computed Value: as specified
+		Animation type: not animatable
 	</pre>
 
 	<dl>
@@ -845,9 +847,12 @@ The region-fragment property</h3>
 		Initial: auto
 		Applies To: <a>CSS Regions</a>
 		Inherited: no
-		Computed Value: as specified
+		Computed Value: specified keyword
+		Animation type: discrete
 	</pre>
 
+	ISSUE: The 'continue' property in [[css-overflow-3]] is likely to replace this property.
+
 	The 'region-fragment' property controls the behavior
 	of the <a>last usable region</a>
 	associated with a <a>named flow</a>.