docs could include links to binary model files

[claravdw]

It would be nice if the documentation would include some suggestions/links for places where to download binary files of pre-trained embedding models. So far the only one I've found GoogleNews-vectors-negative300.bin
, but the model is quite big (3.6 GB), too big for my purposes.

In general, I think it would show off the usefulness of the package if it pointed to places where compatible models can be downloaded.

Thanks!