[css-grid-1][editorial] Update changes section

Author: tabatkins

css-grid-1/Overview.bs

@@ -5213,25 +5213,29 @@ Clarifications</h4>
 			(<a href="https://github.com/w3c/csswg-drafts/issues/5351">Issue 5351</a>)
 
 			<blockquote>
-				<p><strong>Distribute space <del>to base sizes</del> up to growth limits:</strong>
-				<ins>When handling [=base sizes=]</ins>
-				find the |item-incurred increase| for each spanned track with an affected size
+				<strong>Distribute space <del>to base sizes</del> up to <del>growth</del> limits:</strong>
+				Find the |item-incurred increase| for each spanned track with an affected size
 				by: distributing the space equally among such tracks,
 				freezing a track’s |item-incurred increase|
 				as its affected size + |item-incurred increase|
-				reaches its <a>growth limit</a>
+				reaches its <del><a>growth limit</a></del><ins>|limit|</ins>
 				(and continuing to grow the unfrozen tracks as needed).
 
-				<p>If a track was marked as <a>infinitely growable</a> for this phase,
+				<p><del>If a track was marked as <a>infinitely growable</a> for this phase,
 				treat its <a>growth limit</a> as infinite for this calculation
-				(and then unmark it).
-
-				<del><p class="note">Note: If the affected size was a <a>growth limit</a>,
-				each |item-incurred increase| will be zero.</p></del>
-
-				<p><ins>When handling [=growth limits=],
-				set the |item-incurred increase| for each spanned track with an affected size
-				to zero.
+				(and then unmark it).</del>
+
+				<p><ins>For [=base sizes=],
+				the |limit| is its [=growth limit=].
+				For [=growth limits=],
+				the |limit| is infinity if it is marked as [=infinitely growable=],
+				and equal to the [=growth limit=] otherwise.</ins>
+
+				<p class=note>Note: If the affected size was a <a>growth limit</a>,
+				<del>each |item-incurred increase| will be zero.</del>
+				<ins>and the track is not marked [=infinitely growable=],
+				then the |item-incurred increase| for each spanned track with an affected size
+				is zero.</ins>
 			</blockquote>
 	</ul>