[TASK] Mention jQuery as external library in about section

Mention jQuery as external library, that is used in the TYPO3
core

Change-Id: Ia6c93c35d27c96d4d8b670ac94417ecf1b46e6ca
Resolves: #38968
Releases: 6.0
Reviewed-on: http://review.typo3.org/12811
Reviewed-by: Georg Ringer
Tested-by: Georg Ringer

typo3/sysext/about/Resources/Private/Partials/ExternalLibraries.html

@@ -22,6 +22,10 @@
 			<td>ExtJS</td>
 			<td><a href="http://www.sencha.com/" target="_blank">www.sencha.com</a></td>
 		</tr>
+		<tr>
+			<td>jQuery</td>
+			<td><a href="http://jquery.com" target="_blank">jquery.com</a></td>
+		</tr>
 		<tr>
 			<td>JSMin</td>
 			<td><a href="http://www.crockford.com" target="_blank">www.crockford.com</a></td>