Update NU5048.md

Author: karann-msft

docs/reference/errors-and-warnings/NU5048.md

@@ -29,19 +29,17 @@ To stop seeing this warning, add an embedded icon to your package.
 
 For nuspec files, add an `<icon/>` entry that points to the file that will be the package icon:
 
-```xml 
+```xml
 <package>
   <metadata>
-    <id>sample.lib</id>
-    <version>0.0.1</version>
-    <authors>nuget</authors>
-    <owners>nuget</owners>
-    <license type="expression">MIT</license>
-    <description>Package containing the icon file</description>
-    <icon>icon.jpg</icon>
+    ...
+    <icon>images\icon.png</icon>
+    ...
   </metadata>
   <files>
-    <file src="icon.jpg" />
+    ...
+    <file src="..\icon.png" target="images\" />
+    ...
   </files>
 </package>
 ```
@@ -51,13 +49,11 @@ For MSBuild project files, add an `<PackageIcon/>` property, as follows:
 ```xml
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFramework>netstandard2.0</TargetFramework>
-    <PackageIcon>icon.jpg</PackageIcon>
+      <PackageIcon>icon.png</PackageIcon>
   </PropertyGroup>
+
   <ItemGroup>
-    <None Include="icon.jpg" Pack="true" PackagePath="" />
+      <None Include="images\icon.png" Pack="true" PackagePath=""/>
   </ItemGroup>
 </Project>
-```
-
-To learn more about embedded icons in NuGet and the Icon URL deprecation efforts, see https://aka.ms/deprecateIconUrl 
+    ```