Mostly docs cleanups

Fix documentation build errors and RST formatting

Change-Id: Id93153400c5b069dd9d772381558c7085f64c207
diff --git a/lib/rpc_backend b/lib/rpc_backend
index 3033cbe..d82af6d 100644
--- a/lib/rpc_backend
+++ b/lib/rpc_backend
@@ -1,8 +1,7 @@
 #!/bin/bash
 #
 # lib/rpc_backend
-# Interface for interactig with different rpc backend
-# rpc backend settings
+# Interface for interactig with different RPC backends
 
 # Dependencies:
 #
@@ -27,10 +26,10 @@
 # messaging server as a service, which it really isn't for multi host
 QPID_HOST=${QPID_HOST:-}
 
+
 # Functions
 # ---------
 
-
 # Make sure we only have one rpc backend enabled.
 # Also check the specified rpc backend is available on your platform.
 function check_rpc_backend {