Add minor fix

Author: sergepilipchuk

Readme.md

@@ -74,7 +74,7 @@ This example creates two Property Grid controls and displays them in tab contain
 </dx:DXTabControl>
 ```
 
-When a user selects a contact, the PropertyGridControl displays its properties. The user can edit each property value directly in the grid.
+When a user selects a contact, the `PropertyGridControl` displays its properties. The user can edit each property value directly in the grid.
 
 ## Files to Review
 
@@ -96,7 +96,6 @@ When a user selects a contact, the PropertyGridControl displays its properties.
 * [WPF Data Grid – Specify Custom Content for Column Chooser Headers](https://github.com/DevExpress-Examples/wpf-data-grid-custom-content-for-column-chooser-headers)
 
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