Please add some examples for Multipart/form-data bindings

[yanfali]

Awesome library. I was a little confused and had to do some experimentation on how to use this particular deserializer. I think it would be great if you could add some examples to the docs. Thank you for this library.

e.g.

type MultiPartPostFormRequest struct {
    Metadata *multipart.FileHeader `json:"metadata"`
    Data     *multipart.FileHeader `json:"data"`
}

func (f *MultiPartPostFormRequest) FieldMap() binding.FieldMap {
    return binding.FieldMap{
        &f.Metadata: "metadata",
        &f.Data:     "data",
    }
}

Adding some simple examples on how to use the result data structures would be very helpful too.

[mholt]

Great idea. I'm pretty swamped at the moment; would you be willing to make a pull request? You can just put the example in the README for now. (When 1.0 is locked in, I'll add some GoDoc examples).

[yanfali]

Will do. Thanks.

[mholt]

Done, in 6c08230 - thanks again!