Improve grid-structural selectors links

Author: shvaikalesh

selectors-4/Overview.bs

@@ -470,19 +470,19 @@ Selectors Overview</h2>
 				<td><code>F || E</code>
 				<td>an E element that represents a cell in a grid/table
 						belonging to a column represented by an element F
-				<td>[[#table-pseudos]]
+				<td>[[#the-column-combinator]]
 				<td>4
 			<tr>
 				<td><code>E:nth-col(<var>n</var>)</code>
 				<td>an E element that represents a cell belonging to the
 						<var>n</var>th column in a grid/table
-				<td>[[#table-pseudos]]
+				<td>[[#the-nth-col-pseudo]]
 				<td>4
 			<tr>
 				<td><code>E:nth-last-col(<var>n</var>)</code>
 				<td>an E element that represents a cell belonging to the
 						<var>n</var>th column in a grid/table, counting from the last one
-				<td>[[#table-pseudos]]
+				<td>[[#the-nth-last-col-pseudo]]
 				<td>4
 	</table>