Add info about config false leafs to describe

Change-Id: Ie256f11617a48ec6dfa913cae1484550e9ec8664
diff --git a/src/interpreter.cpp b/src/interpreter.cpp
index 22c1824..f3fde9e 100644
--- a/src/interpreter.cpp
+++ b/src/interpreter.cpp
@@ -127,6 +127,11 @@
         ss << "list";
         break;
     }
+
+    if (!m_datastore.schema()->isConfig(path)) {
+        ss << " (ro)";
+    }
+
     return ss.str();
 }