Add schema for jenkins formula

Change-Id: Iadf3199a1cdcda64f892ada9ecc1379a306549ef
Related-prod: PROD:20632
diff --git a/metadata.yml b/metadata.yml
index d090f37..04459ab 100644
--- a/metadata.yml
+++ b/metadata.yml
@@ -6,3 +6,5 @@
   source: "https://gerrit.mcp.mirantis.com/salt-formulas/java"
 - name: linux
   source: "https://gerrit.mcp.mirantis.com/salt-formulas/linux"
+- name: git
+  source: "https://gerrit.mcp.mirantis.com/salt-formulas/git"