ES-975464 - Resolve the ReadMe issue in this sample repository

Author: SreemonPremkumarM

README.md

@@ -1,6 +1,36 @@
-# Localization in winUI DataGrid (SfDataGrid)
+# Localization in WinUI DataGrid (SfDataGrid)
 
-This repository contains sample which shows localization of Syncfusion WinUI DataGrid.
-https://help.syncfusion.com/winui/localization
+This repository contains sample which shows [localization](https://help.syncfusion.com/winui/localization) of Syncfusion WinUI DataGrid (SfDataGrid).
 
-![Localized WinUI DataGrid](Localization_Image.png)
+Localization is the process of making an application multilingual by formatting the content according to the languages. This involves configuring the application for a specific language.
+
+### Changing application language
+
+The application language can be changed by setting the desired language to the `ApplicationLanguages.PrimaryLanguageOverride` property in the constructor of the main window. Localization can be done while changing the application language by creating a .resw file.
+
+``` csharp
+public sealed partial class MainWindow : Window
+{
+    public MainWindow()
+    {
+        Windows.Globalization.ApplicationLanguages.PrimaryLanguageOverride = "de";
+        this.InitializeComponent();
+    }
+}
+```
+
+The following screenshot illustrates how the localization is applied to the datagrid based on the defined language to the `ApplicationLanguages.PrimaryLanguageOverride` property.
+
+### Creating .resw files
+
+The following steps can be used to generate .resw files for any language:
+
+1. Right-click the project and add a New folder named as “Resources”.
+
+2. Add another folder and name the folder with “language name”. For example, “de” for German language. Find the supported culture codes from [here](https://docs.microsoft.com/en-us/windows/uwp/app-resources/how-rms-matches-lang-tags).
+
+3. Add [default resource files](https://github.com/syncfusion/winui-controls-localization-resource-files) in the following structure.
+
+4. Now, the key names from default resource files can be defined and assigned values based on language.
+
+![Localized WinUI DataGrid](Localization_Image.png)