[upnpcontrol] Small correction to UpnpControl Binding README.md (#10393)

[upnpcontrol] Small correction to UpnpControl Binding README.md (#10393)

In the Thing Configuration section starting at Line 40, the code example had parameters transposed versus the preceding description and the true operation of the binding.  The correction puts the parameters included in the original example in the thing that they belong with in Lines 80 and 81.  The optional notification parameters of the renderer were not included originally and I have left it like that.