Update Readme.md

Author: iam0k

Readme.md

@@ -23,7 +23,7 @@
 * [MsaglGeometryGraphHelpers.cs](./CS/MsaglHelpers/MsaglGeometryGraphHelpers.cs) (VB: [MsaglGeometryGraphHelpers.vb](./VB/MsaglHelpers/MsaglGeometryGraphHelpers.vb))
 * [RoutingHelper.cs](./CS/MsaglHelpers/RoutingHelper.cs) (VB: [RoutingHelper.vb](./VB/MsaglHelpers/RoutingHelper.vb))
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-# WPF Diagram Control - Custom graph layout algorithms
+# WPF Diagram Control - Automatic layout algorithms (MSAGL)
 
 
 DiagramControl provides two methods that make it easier to use external graph layout algorithms to arrange diagram shapes. The <strong><em>GraphOperations.GetDiagramGraph</em></strong> method reads the diagram currently loaded into DiagramControl and returns the <strong><em>Graph</em></strong> object that contains collections of edges and nodes represented by diagram items. You can use this information to calculate positions for diagram shapes. Then, for every shape, create the <strong><em>PositionInfo</em> </strong>object containing the shape reference and its position. To apply the layout to the loaded diagram, call the <em><strong>DiagramControl.RelayoutDiagramItems</strong></em> method that accepts the collection of PositionInfo objects.<br><br>This example demonstrates how the GetDiagramGraph and RelayoutDiagramItems methods can be used to connect the <a href="https://github.com/Microsoft/automatic-graph-layout">Microsoft Automatic Graph Layout (MSAGL)</a> library to DiagramControl.