Add data for RustConf 2019

[CanadaHonk]

YouTube Playlist

Resources:

• Contributing Guidelines
• Slack
• Newsletter

Notes:

• If a talk has not been uploaded you can leave the video_url empty and put in a random date
• You might need to update the IDs in case another PR is merged first
• If you want to add another other conference, feel free to open an issue if you want

[villabunterkunt]

I'd like to add the talk from RustConf! :)

[EddyVinck]

@villabunterkunt Thank you for your contribution. I'll check it out after work. Be sure to join our community Slack and newsletter if you would like to get involved 🙂