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README.md

@@ -23,7 +23,7 @@ This library is distributed only via [NPM](npmjs.com). Install by running
 Require it in your code like this.
 
 ```javascript
-const { Graph, serializeGraph, deserializeGraph, topologicalSort, shortestPath } = require('graph-data-structure');
+import { Graph, serializeGraph, deserializeGraph, topologicalSort, shortestPath } from 'graph-data-structure';
 ```
 
 ## Examples
@@ -98,18 +98,20 @@ For more detailed example code that shows more methods, have a look at the [test
 
 Constructs an instance of the graph data structure.
 
-The optional argument _serialized_ is a serialized graph that may have been generated by **[serializeGraph](#serializeGraph)**. If _serialized_ is present, it is deserialized by invoking **[deserializeGraph](#deserializeGraph)**.
+The optional argument _serialized_ is a serialized graph that may have been generated by **[serializeGraph](#serializeGraph)**. If _serialized_ is present, it is deserialized by invoking **[deserializeGraph(mySerializedObject)](#deserializeGraph)**.
 
 ### Adding and Removing Nodes
 
 <a name="add-node" href="#add-node">#</a> <i>graph</i>.<b>addNode</b>(<i>node</i>)
 
-Adds a node to the graph. Returns _graph_ to support method chaining. The argument _node_ can be any object or string that uniquely identifies the node within this graph instance. If a node with the same identifier was already added to the graph, this function does nothing.
+Adds a node to the graph. Returns _graph_ to support method chaining. If the given _node_ was already added to the graph, this function does nothing.
 
 <a name="remove-node" href="#remove-node">#</a> <i>graph</i>.<b>removeNode</b>(<i>node</i>)
 
 Removes the specified node. Returns _graph_ to support method chaining. The argument _node_ is a string or object identifier for the node to remove. This function also removes all edges connected to the specified node, both incoming and outgoing.
 
+**Note:** You have to remove them using the exact same reference as when they were created. One can use getNode() to retrieve such reference.
+
 ### Adding and Removing Edges
 
 <a name="add-edge" href="#add-edge">#</a> <i>graph</i>.<b>addEdge</b>(<i>u</i>, <i>v</i>[,<i>weight</i>])