doc: fix typo in CHANGELOG.md

PR-URL: https://github.com/nodejs/node/pull/12434
Fixes: https://github.com/nodejs/node/issues/12430
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: Timothy Gu <timothygu99@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Brian White <mscdex@mscdex.net>

CHANGELOG.md

@@ -29,7 +29,7 @@ release.
 <tr>
     <td valign="top">
 <b><a href="doc/changelogs/CHANGELOG_V7.md#7.9.0">7.9.0</a></b><br/>
-<a href="doc/changelogs/CHANGELOG_V7.md#7.8.0<">7.8.0<</a><br/>
+<a href="doc/changelogs/CHANGELOG_V7.md#7.8.0">7.8.0</a><br/>
 <a href="doc/changelogs/CHANGELOG_V7.md#7.7.4">7.7.4</a><br/>
 <a href="doc/changelogs/CHANGELOG_V7.md#7.7.3">7.7.3</a><br/>
 <a href="doc/changelogs/CHANGELOG_V7.md#7.7.2">7.7.2</a><br/>