[css-fonts-4][editorial] Fixed Bikeshed failures

Author: SebastianZ

css-fonts-4/Overview.bs

@@ -36,7 +36,7 @@ spec:fetch; type:dfn; for:/; text:fetch
 <pre class=biblio>
 	{
 		"GRAPHITE": {
-			"href": "https://scripts.sil.org/cms/scripts/page.php?site_id=projects&item_id=graphite_techAbout",
+			"href": "https://graphite.sil.org/graphite_techAbout.html",
 			"title": "Graphite technical overview",
 			"publisher": "SIL",
 			"date": "2012"
@@ -1481,15 +1481,16 @@ Font size: the 'font-size' property</h3>
 
 	<table class="data">
 		<thead>
-			<th>CSS absolute-size values
-			<th>xx-small
-			<th>x-small
-			<th>small
-			<th>medium
-			<th>large
-			<th>x-large
-			<th>xx-large
-			<th>xxx-large
+			<tr>
+				<th>CSS absolute-size values
+				<th>xx-small
+				<th>x-small
+				<th>small
+				<th>medium
+				<th>large
+				<th>x-large
+				<th>xx-large
+				<th>xxx-large
 		<tbody>
 			<tr>
 				<th>scaling factor