doc: add reference to qsync
diff --git a/docs/index.rst b/docs/index.rst
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -80,6 +80,7 @@ For more information see documents below
evolve-faq
from-mq
evolve-collaboration
+ qsync
Smart changeset deletion: Obselete Marker
==========================================
diff --git a/docs/qsync.rst b/docs/qsync.rst
new file mode 100644
--- /dev/null
+++ b/docs/qsync.rst
@@ -0,0 +1,16 @@
+---------------------------------------------------------------------
+Qsync: Mercurial to MQ exporter
+---------------------------------------------------------------------
+
+
+People may have tools or wo-worker that export to receive mutable history using
+versionned mq repository.
+
+For this purpose you can use the ``qsync`` extension:
+
+
+To enable the evolve extension use::
+
+ $ hg clone http://hg-dev.octopoid.net/hgwebdir.cgi/mutable-history/
+ $ mutable-history/iqsync-enable.sh > ~/.hgrc
+ $ hg help qsync