doc: fix links from ToC to subsection for 4.8.x

PR-URL: https://github.com/nodejs/node/pull/13039
Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
Reviewed-By: Daniel Bevenius <daniel.bevenius@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>

doc/changelogs/CHANGELOG_V4.md

@@ -7,8 +7,8 @@
 </tr>
 <tr>
 <td valign="top">
-<a href="#4.8.1">4.8.3</a><br/>
-<a href="#4.8.1">4.8.2</a><br/>
+<a href="#4.8.3">4.8.3</a><br/>
+<a href="#4.8.2">4.8.2</a><br/>
 <a href="#4.8.1">4.8.1</a><br/>
 <a href="#4.8.0">4.8.0</a><br/>
 <a href="#4.7.3">4.7.3</a><br/>