2011-10-20: added clone info.

added clone info.

diff --git a/README.txt b/README.txt
--- a/README.txt
+++ b/README.txt
@@ -10,6 +10,7 @@ without the interactivity).
 Install:
 
 * Clone this repo.
+  hg clone http://draketo.de/proj/hgstatic/
 * add this to the [extensions] section in your ~/.hgrc
   static = path/to/static.py
   if you have no [extensions] section, add it.