Added example to readme.md of the table-valued input parameter

Hi Abraham,
Thanks for the quick answers to my questions. I cloned your project.

Perhaps I can add something to it if I succeed in doing in using it with my 'dynamic' return value.

But for now at least I added your own code example using the table valued input parameter. Perhaps there are other users/visitors for whom this would be a key feature. I did shorten it a little, since it would be off having three code blocks for this example, while all the others have only one.