Updated README

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README.md

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 This repo contains accompanying samples for _Expression Trees in Visual Basic and C#_, an MSDN Magazine article which is scheduled to appear in the September 2019 issue.
 
-C# sample code is in projects whose name starts with `CSharp`; Visual Basic sample projects start with `VisualBasic`.
+All the samples are available in both a C# version and a VB.NET version (except for the sample demonstrating the usage of the `Like` operator rewrite, because C# doesn't have the `Like` operator).
+
+The samples, in order of appearance in the article, are as follows:
+
+| Figure | Name/Description | Location |
+| --- | --- | --- |
+| **Figure 2** | **Expression Tree Objects Using Object Notation**<br/>Shows an expression tree using object and collection initialization syntax | `CSharp`<br/>`VisualBasic` |
+| **Figure 3** | **NodeType, Value, Name properties**<br/>Shows the properties relevant to understanding the structure of an expression tree | `CSharp`<br/>`VisualBasic` |
+| **Figure 5** | **Blocks, Assignments and Statements in Expression Trees**<br/>Constructs an expression tree using factory methods, interspersed with the corresponding code in comments | `CSharp`<br/>`VisualBasic` |
+| **Figure 6** | **Visualization of Final Expression Tree**<br/>Demonstrates what an expression tree looks like before and after a call to `Queryable.Where` | `CSharp`<br/>`VisualBasic` |
+| | **`GetMethod` -- Reflection by Example**<br/>Uses an expression tree to target a specific MethodInfo instead of reflection | `CSharp`<br/>`VisualBasic` |
+| | **Grid Column Configuration**<br/>Declaratively set the columns of a WPF `DataGrid` using an appropriate expression | `CSharp_SetColumns`<br/>`VisualBasic_SetColumns` |
+| **Figure 7** | **Requests Using the Simple.OData.Client Library and Expression Trees** | `CSharp`<br/>`VisualBasic` |
+| **Figure 8** | **ExpressionTreeVisitor Replacing Visual Basic's `Like` with `DbFunctions.Like`** | `CSharp_LikeVisitor`<br/>`VisualBasic_LikeVisitor` |
+
+## Description of the project structure 
+
+Projects whose name starts with `CSharp` contain C# versions of the samples; projects starting with `VisualBasic` contain Visual Basic versions.
 
 The project structure is as follows:
 
 | Project name | Description |
 | --- | --- |
 | `_Shared` | Contains shared code used by multiple samples, e.g. data classes and extensions |
+| `_Shared.EF6` | Some of the samples use EF6.  This project contains the `DbContext` and configuration classes |
 | `CSharp`<br/>`VisualBasic` | Short samples encapsulated in a single method |
-| `CSharp_SetColumn` | Implements declaratively setting columns on a WPF DataGrid in code, using expression trees <br/> Also uses an expression tree visitor to generate a binding path for the given expression. |
+| `CSharp_SetColumn`<br/>`VisualBasic_SetColumn` | <ul><li>Implements declaratively setting columns on a WPF DataGrid in code, using expression trees</li><li>`ParseFields` -- Parses the intended columns from an expression returning an array, anonymous type, or single property</li><li>`XamlBindingPathVisitor` -- Expression visitor that generates an object path usable with WPF databinding</li></ul><br/> |
+| `CSharp_LikeVisitor`<br/>`VisualBasic_LikeVisitor` | Uses an expression visitor to rewrite Visual Basic's `Like` operator usages to EF's `DbFunctions.Like` method. |
 
 ## TODO
 
-* `Like` operator tree visitor
 * DLR CallSite