[css-grid-1] Be more verbose. #3614

Author: fantasai

css-grid-1/Overview.bs

@@ -4188,11 +4188,11 @@ Distributing Extra Space Across Spanned Tracks</h4>
 
 					<ul>
 						<li>
-							when handling ''min-content'' or ''auto'' <a>base sizes</a>:
+							when handling <a>base sizes</a> of tracks with ''min-content'' or ''auto'' minimums:
 							any affected track that happens to also have an intrinsic <a>max track sizing function</a>;
 							if there are no such tracks, then all affected tracks.
 						<li>
-							when handling ''max-content'' <a>base sizes</a>:
+							when handling <a>base sizes</a> of tracks with ''max-content'' minimums:
 							any affected track that happens to also have a ''max-content'' <a>max track sizing function</a>;
 							if there are no such tracks, then all affected tracks.
 						<li>when handling any intrinsic <a>growth limit</a>: