[css-align-3] Slightly rephrase grid-item align-self:normal wording, and properly copy it over to justify-self. w3c#1433

Author: tabatkins

css-align-3/Overview.bs

@@ -1461,10 +1461,10 @@ Inline-Axis (or Main-Axis) Alignment: the 'justify-self' property</h3>
 		<tr>
 			<th>''justify-self/normal'' Behavior
 			<td>
-				Effectively ''justify-self/start'' for most [=replaced elements=]
-				and ''justify-self/stretch'' for most [=non-replaced elements=];
-				see <a href="https://www.w3.org/TR/css-grid-1/#grid-item-sizing">Grid Item Sizing</a> in [[!CSS-GRID-1]] for precise behavior.
-				The resulting box is start-aligned.
+				Sizes as either ''justify-self/stretch'' (typical [=non-replaced elements=])
+				or ''justify-self/start'' (typical [=replaced elements=]);
+				see [[css-grid-1#grid-item-sizing|Grid Item Sizing]] in [[!CSS-GRID-1]].
+				The resulting box is then start-aligned.
 	</table>
 
 	See [[!CSS-GRID-1]] for details.
@@ -1648,9 +1648,10 @@ Block-Axis (or Cross-Axis) Alignment: the 'align-self' property</h3>
 		<tr>
 			<th>''align-self/normal'' Behavior
 			<td>
-				Behaves as ''align-self/stretch'' for non-replaced items.
-				For replaced items,
-				see <a href="https://www.w3.org/TR/css-grid-1/#grid-item-sizing">Grid Item Sizing</a> in [[!CSS-GRID-1]].
+				Sizes as either ''justify-self/stretch'' (typical [=non-replaced elements=])
+				or ''justify-self/start'' (typical [=replaced elements=]);
+				see [[css-grid-1#grid-item-sizing|Grid Item Sizing]] in [[!CSS-GRID-1]].
+				The resulting box is then start-aligned.
 	</table>
 
 <h3 id='place-self-property'>