[css-sizing] fix linking errors

Author: tabatkins

css-sizing-3/Overview.bs

@@ -22,6 +22,7 @@ spec:css21; type: property
 	text: min-height
 	text: max-width
 	text: max-height
+spec:css-align-3; type:value; text:stretch; for:align-self
 </pre>
 
 <!-- Notes on stuff to do... [copy/pasted from etherpad, probably out-of-date, evaluate later]
@@ -265,7 +266,7 @@ New Keywords for 'width' and 'height'</h3>
 			is defined to apply,
 			size the box as if ''align-self/stretch'' were specified for that property.
 			(If the box does not exactly fill its <a>alignment container</a>,
-			the <a>alignment properties</a> will dictate how the size differential is handled.)
+			the <a>box alignment properties</a> will dictate how the size differential is handled.)
 			Otherwise,
 			this value behaves as the initial value.
 
@@ -292,7 +293,7 @@ New Keywords for 'width' and 'height'</h3>
 			If specified for the inline axis,
 			use the <a>fit-content inline size</a>
 			i.e.
-			<code>min(''max-content'', max(''min-content'', ''stretch''))</code>;
+			<code>min(''width/max-content'', max(''width/min-content'', ''width/stretch''))</code>;
 			otherwise compute to the property’s <a>initial value</a>.
 
 		<dt><dfn for="width, max-width, height, max-height">fit-content(<<length-percentage>>)</dfn>
@@ -301,7 +302,7 @@ New Keywords for 'width' and 'height'</h3>
 			use the fit-content formula
 			with the <a>available space</a> replaced by the specified argument,
 			i.e.
-			<code>min(''max-content'', max(''min-content'', <<length-percentage>>))</code>;
+			<code>min(''width/max-content'', max(''width/min-content'', <<length-percentage>>))</code>;
 			otherwise compute to the property’s <a>initial value</a>.
 	</dl>