Update xml/System.Runtime.Intrinsics.X86/Avx2.xml

Co-Authored-By: Maira Wenzel <[email protected]>

Author: carlossanlop

xml/System.Runtime.Intrinsics.X86/Avx2.xml

@@ -3624,7 +3624,7 @@
 
 ## Remarks
 
-The native signature does not exist. We provide this additional overload for completeness.
+The native signature doesn't exist. This additional overload is provided for completeness.
 
           ]]></format>
         </remarks>