--- a/hg.rst	Fri Feb 26 23:45:14 2010 +0200
+++ b/hg.rst	Fri Feb 26 23:48:11 2010 +0200
@@ -2,6 +2,16 @@
 
 * Useful customization.
 
+** Useful extension.
+
+Put to your ~/.hgrc:
+
+  [extensions]
+  ; To allow fetch command.
+  fetch =
+  ; To allow Mercurial Queues.
+  hgext.mq =
+
 ** Multiline log message for log command.
 
 By default 'hg log' show only first line of log message. To see all message run: