userblocklist: docs - small typo

(cherry picked from commit 81357b548b6e0cdf464361c2b1742d797f0d7e95)

src/modules/userblocklist/doc/userblocklist_admin.xml

@@ -20,7 +20,7 @@
 	</para>
 	<para>
 	An additional functionality that this module provides is the ability
-	to handle global blocklists. This lists are loaded on startup into
+	to handle global blocklists. These lists are loaded on startup into
 	memory, thus providing a better performance than the userblocklist
 	case. These global blocklists are useful to allow only calls to certain
 	international destinations, i.e. block all not allowlisted numbers.