[css-grid-3] Update issues

Author: fantasai

css-grid-3/Overview.bs

@@ -3,7 +3,7 @@ Title: CSS Grid Layout Module Level 3
 Shortname: css-grid
 Level: 3
 Status: ED
-Work Status: Revising
+Work Status: Refining
 Group: csswg
 TR:  https://www.w3.org/TR/css-grid-3/
 ED: https://drafts.csswg.org/css-grid-3/
@@ -792,8 +792,6 @@ Placement Precision: the 'item-tolerance' property</h3>
 		only the fourth column is a possible placement.
 	</div>
 
-	Issue: Is ''1em'' the right default?
-
 	ISSUE(10884): The CSSWG is open to better names for this property.
 
 	Note: We expect to apply this property to [=flex layout=] in the future also,
@@ -1092,8 +1090,6 @@ Baseline Alignment</h3>
 
 	ISSUE: We could support baseline alignment in the first row. Do we want to?
 
-	ISSUE: Should the last baseline come from the last lowest item placed instead?
-
 <h2 id="pagination">
 Fragmentation</h2>
 
@@ -1294,6 +1290,7 @@ Item Flow Axis: 'item-track'/'item-direction'</h3>
 	These are identical for [=flex layout=] and [=grid layout=],
 	but differ for [=grid lanes layout=] whose primary placement direction
 	is across its tracks.
+	See <a href="https://github.com/w3c/csswg-drafts/issues/12803">latest discussion</a>.
 
 	<dl dfn-type=value dfn-for="item-direction, item-track">
 		: <dfn>auto</dfn>