[selectors-4] Add some ellipses per w3ctag/design-reviews#219 (comment)

Author: fantasai

selectors-4/Overview.bs

@@ -122,25 +122,25 @@ Selectors Overview</h2>
 				<td>1
 		<tbody>
 			<tr>
-				<td><code>E:not(<var>s1</var>, <var>s2</var>)</code>
+				<td><code>E:not(<var>s1</var>, <var>s2</var>, &hellip;)</code>
 				<td>an E element that does not match either <a>compound selector</a> <var>s1</var>
 						or <a>compound selector</a> <var>s2</var>
 				<td>[[#negation]]
 				<td>3/4
 			<tr>
-				<td><code>E:matches(<var>s1</var>, <var>s2</var>)</code>
+				<td><code>E:matches(<var>s1</var>, <var>s2</var>, &hellip;)</code>
 				<td>an E element that matches <a>compound selector</a> <var>s1</var>
 						and/or <a>compound selector</a> <var>s2</var>
 				<td>[[#matches]]
 				<td>4
 			<tr>
-				<td><code>E:something(<var>s1</var>, <var>s2</var>)</code>
+				<td><code>E:something(<var>s1</var>, <var>s2</var>, &hellip;)</code>
 				<td>an E element that matches <a>compound selector</a> <var>s1</var>
 						and/or <a>compound selector</a> <var>s2</var> but contributes no specificity.
 				<td>[[#zero-matches]]
 				<td>4
 			<tr>
-				<td><code>E:has(<var>rs1</var>, <var>rs2</var>)</code>
+				<td><code>E:has(<var>rs1</var>, <var>rs2</var>, &hellip;)</code>
 				<td>an E element,
 					if either of the <a>relative selectors</a> <var>rs1</var> or <var>rs2</var>,
 					when evaluated with E as the <a>:scope elements</a>,