Fix closing tag

Author: gewarren

xml/System.Text.Json.Serialization.Metadata/JsonParameterInfoValues.xml

@@ -22,8 +22,7 @@
   </Attributes>
   <Docs>
     <summary>Provides information about a constructor parameter required for JSON deserialization.</summary>
-    <remarks>To be added.</format>
-    </remarks>
+    <remarks>To be added.</remarks>
   </Docs>
   <Members>
     <Member MemberName=".ctor">