Fix typo (#11453)

Fixes #11445

Author: Potapy4

docs/framework/wpf/advanced/wpf-globalization-and-localization-overview.md

@@ -138,9 +138,9 @@ The localization process begins after the unlocalized `MyDialog.resources.dll` f
 
  Note that of the example uses the shared-sizing feature of <xref:System.Windows.Controls.Grid>. The last three columns take advantage of this by placing themselves in the same <xref:System.Windows.Controls.DefinitionBase.SharedSizeGroup%2A>. As one would expect from the name of the property, this allows the columns to share the same size. So when the "Browse…" gets localized to the longer string "Durchsuchen…", all buttons grow in width instead of having a small "OK" button and a disproportionately large "Durchsuchen…" button.  
 
- **Xml:lang**
+ **xml:lang**
 
- `Xml:lang="en-US"`  
+ `xml:lang="en-US"`  
 
  Notice the [xml:lang Handling in XAML](../../xaml-services/xml-lang-handling-in-xaml.md) placed at the root element of the [!INCLUDE[TLA2#tla_ui](../../../../includes/tla2sharptla-ui-md.md)]. This property describes the culture of a given element and its children. This value is used by several features in [!INCLUDE[TLA2#tla_winclient](../../../../includes/tla2sharptla-winclient-md.md)] and should be changed appropriately during localization. This value changes what language dictionary is use to hyphenate and spell check words. It also affects the display of digits and how the font fallback system selects which font to use. Finally, the property affects the way numbers are displayed and the way texts written in complex scripts are shaped. The default value is "en-US".