wsdl documentation tags?

Hi,

I have created a simple XML web service using ASP.NET which exposes several test methods.

I would like to add documentation to the auto generated WSDL documentation but am having a hard time finding info on what I thought would be an incredibly easy topic....

Sample:
<s:element name="GetOrder">
<s:annotation>
<s:documentation>
Loads Order Object into dataset
</s:documentation>
</s:annotation>


*** do I need to type into Visual Studio around my method declaration to have a documenation (annotation, w/e they are calling it) tag automatically added like this? What am I not understanding that is making something so trivial so difficult?