Adding an ability to use ssl for metadata host

Prod-Related: PROD-19298
Change-Id: I4150abd2caf87c39183fcdf4f9bace7a360ecaa1
diff --git a/README.rst b/README.rst
index e9f63d0..00a74c4 100644
--- a/README.rst
+++ b/README.rst
@@ -58,6 +58,8 @@
         metadata:
           host: 127.0.0.1
           port: 8775
+          insecure: true
+          proto: https
           password: pass
           workers: 2
         audit: