Update metadata.yml with correct URL

Change-Id: If2cb2baec41b3c394037f33149991142bdf71aae
diff --git a/metadata.yml b/metadata.yml
index cc2675a..3d070bb 100644
--- a/metadata.yml
+++ b/metadata.yml
@@ -1,3 +1,3 @@
 name: "redis"
 version: "0.2"
-source: "https://github.com/tcpcloud/salt-formula-redis"
+source: "https://github.com/salt-formulas/salt-formula-redis"