Update xml/System.Text.Json/JsonSerializerOptions.xml

Co-authored-by: Eirik Tsarpalis <[email protected]>

Author: gewarren

xml/System.Text.Json/JsonSerializerOptions.xml

@@ -711,8 +711,8 @@ For more information, see [How to ignore properties with System.Text.Json](/dotn
             The default value is <see langword="false" />.</summary>
         <value>
           <see langword="true" /> if public fields are included during serialization; otherwise, <see langword="false" />.</value>
-        <remarks>Only includes public fields during serialization and deserialization. Private fields are not included, even if IncludeFields is set to <see langword="true" />.
-                 If you need to include private fields, you would typically use properties with appropriate accessors or consider using attributes like [JsonInclude] on those fields.
+        <remarks>This flag only enables serialization for public fields, as is the case for properties.
+                 Private members need to be opted into individually using the <see cref="T:System.Text.Json.Serialization.JsonIncludeAttribute" /> attribute.
         </remarks>
         <exception cref="T:System.InvalidOperationException">This property is set after serialization or deserialization has occurred.</exception>
       </Docs>