Updated AutoSelectTextBox (markdown)

AutoSelectTextBox.md

@@ -4,7 +4,7 @@ Derives from TextBox
 
 AutoSelectTextBox is a control whose content is selected when it receives the focus. It also performs automatic focus navigation when the caret reaches the extremities of the text range.
 
-## Usage
+### Usage
 
 **XAML**
 
@@ -111,7 +111,7 @@ AutoSelectTextBox is a control whose content is selected when it receives the fo
 </sample:DemoView>
 ```
 
-## Properties
+### Properties
 | Property | Description |
 | --- | --- |
 | AutoMoveFocus |  Gets or sets a value indicating if the focus can navigate in the appropriate flow direction (e.g., from one cell to another when a cell is being edited) when the cursor is at the beginning or end of the auto-select text box. |