Fix comment.

Author: dlongley

lib/nodeMap.js

@@ -201,6 +201,7 @@ api.createNodeMap = (input, graphs, graph, issuer, name, list) => {
           {propertyIsArray: true, allowDuplicate: false});
         api.createNodeMap(o, graphs, graph, issuer, id);
       } else if(graphTypes.isValue(o)) {
+        // handle @value
         util.addValue(
           subject, property, o,
           {propertyIsArray: true, allowDuplicate: false});
@@ -213,7 +214,7 @@ api.createNodeMap = (input, graphs, graph, issuer, name, list) => {
           subject, property, o,
           {propertyIsArray: true, allowDuplicate: false});
       } else {
-        // handle @value
+        // handle remaining cases
         api.createNodeMap(o, graphs, graph, issuer, name);
         util.addValue(
           subject, property, o, {propertyIsArray: true, allowDuplicate: false});