[pitivi] readme: Update the readme specifying that frei0r is a soft dependency

[Thibault Saunier <tsaunier src gnome org>]

commit c2b7fa762c8e3f650fc80a63171892f510d4c77e
Author: Thibault Saunier <thibault saunier collabora co uk>
Date:   Tue May 24 14:12:56 2011 -0400

    readme: Update the readme specifying that frei0r is a soft dependency

 README |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/README b/README
index b28b04f..5cc3068 100644
--- a/README
+++ b/README
@@ -1,3 +1,3 @@
+In order to get more video effects, you should install the frei0r library
 
-
-
+Packagers should add it as a recommended package.