chore(grid): clean up mentions of binding to dictionary

Author: marin-bratanov

components/grid/overview.md

@@ -90,7 +90,7 @@ The following list of resources provides examples for data binding a grid in var
 
 * **OData** data source - an extension method we provide lets you make OData v4 queries as shown in the following example: [Grid and OData](https://github.com/telerik/blazor-ui/tree/master/grid/odata).
 
-* **DataTable**, **ExpandoObject**, **Dictionary** - If you don't have actual strongly typed models (yet) and you use `ExpandoObject`, or your backend comes from an older technology and still returns `DataTable`s, the grid can accommodate such dynamic data types. You can get started from our examples on how to bind the grid to a [ExpandoObject or Dictionary](https://github.com/telerik/blazor-ui/tree/master/grid/binding-to-expando-object) and to a [DataTable](https://demos.telerik.com/blazor-ui/grid/data-table) which also support [editing](#editing).
+* **DataTable**, **ExpandoObject** collection - If you don't have actual strongly typed models (yet) and you use `ExpandoObject`, or your backend comes from an older technology and still returns `DataTable`s, the grid can accommodate such dynamic data types. You can get started from our examples on how to bind the grid to a [ExpandoObject collection](https://github.com/telerik/blazor-ui/tree/master/grid/binding-to-expando-object) and to a [DataTable](https://demos.telerik.com/blazor-ui/grid/data-table) which also support [editing](#editing).
 
 * **gRPC** - the gRPC tooling supports .NET Core, and as of mid-June 2020, there is a package that brings it to WebAssembly. You can find a basic example and more resources to get you started with gRPC in Blazor in the [Grid Data from gRPC Sample Project](https://github.com/telerik/blazor-ui/tree/master/common/grpc-example).