[css-overflow] Markup fixes

Author: frivoal

css-overflow-4/Overview.bs

@@ -323,7 +323,7 @@ Inline Overflow Ellipsis: the 'text-overflow' property</h3>
 	are ignored,
 	and the value of the property that applies is the one
 	on the non anonymous box.
-	<span class=note>This can be seen in the “nested paragraph” part of <a href="#example-44082941">example 7</a>:
+	<span class=note>This can be seen in the “nested paragraph” part of <a href="#example-a4ab7902"></a>:
 	even though the word “NESTED” is wrapped in an anonymous block container
 	whose 'text-overflow' property has the initial value,
 	it is ellipsed.</span>
@@ -445,7 +445,7 @@ Inline Overflow Ellipsis: the 'text-overflow' property</h3>
 
 		Sample HTML fragments, renderings, and your browser:
 		<table class="awesome-table data">
-			<thead><th>HTML<th>Reference rendering<th>Your Browser</thead>
+			<thead><tr><th>HTML<th>Reference rendering<th>Your Browser</thead>
 			<tr>
 			<td><code highlight=html>&lt;div>שלום 123456&lt;/div></code><td><div style="font-family:monospace">123456 ם…</div><td><div style="font-family: monospace; white-space: pre; overflow: hidden; width: 9ch; text-overflow: ellipsis">שלום 123456</div>
 			<tr><td><code highlight=html>&lt;div dir=rtl>שלום 123456&lt;/div></code><td><div style="font-family:monospace">…456 שלום</div><td><div style="font-family: monospace; white-space: pre; overflow: hidden; width: 9ch; text-overflow: ellipsis" dir=rtl>שלום 123456</div>