Update AppDomainSetup.xml (#7963)

Author: lindexi

xml/System/AppDomainSetup.xml

@@ -1539,8 +1539,8 @@
         <ReturnType>System.String</ReturnType>
       </ReturnValue>
       <Docs>
-        <summary>Gets or sets a string that specifies the target version and profile of the .NET Framework for the application domain, in a format that can be parsed by the <see cref="M:System.Runtime.Versioning.FrameworkName.#ctor(System.String)" /> constructor.</summary>
-        <value>The target version and profile of the .NET Framework.</value>
+        <summary>Gets (or, in .NET Framework, sets) a string that specifies the target framework in a format that can be parsed by the <see cref="M:System.Runtime.Versioning.FrameworkName.#ctor(System.String)" /> constructor.</summary>
+        <value>The target framework of the executable that started the process.</value>
         <remarks>
           <format type="text/markdown"><![CDATA[