One more annotated paper: CONTaiNER

[Kirili4ik]

Hi! I'm really excited by your work and I'd like to contribute. I've annotated one paper for my local reading group, but maybe someone will be thankful for reading it in your repo. I'd really appreciate if you could add this paper to the repo. Maybe one day with a great wast deep learning community we can create a lot more of the annotated papers and make life easier for other researchers and data scientists.