Attaching an HTML web resource to a custom ribbon button

I have created a an HTML web resource and I want to add it to a button I created.  I believe I know were to add it I am just not sure of the script needed.  For example the java web resource I created looks like this: <Actions>

             <JavaScriptFunction Library="$webresource:new_SendGPSData" FunctionName="send" />

           </Actions>

and it works.  However I can not figure out the proper code for an HTML web resource.  When I try to import it says the XSD validation handler was not correct. Please help.