Fix syntax error

Author: carlossanlop

xml/System.Runtime.Intrinsics/Vector128`1.xml

@@ -37,7 +37,7 @@
     </Attribute>
   </Attributes>
   <Docs>
-    <<typeparam name="T">>The vector type. <typeparamref name="T" /> can be any primitive numeric type.</typeparam>
+    <typeparam name="T">The vector type. <typeparamref name="T" /> can be any primitive numeric type.</typeparam>
     <summary>Represents a 128-bit vector of a specified numeric type that is suitable for low-level optimization of parallel algorithms.</summary>
     <remarks>To be added.</remarks>
   </Docs>