Merge branch 'master' into master

2020/April/22/README.md

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 [YouTube Replay](https://youtu.be/QImyKDvryq8)
 ## Keynote: How information sharing is saving us - The MISP project perspective
 Alexandre Dulaunoy (Core Team Member @ MISP, Researcher @ CIRCL)
+ - [Slides - PDF](https://github.com/MISP/misp-training/blob/master/x.6-how-information-sharing-is-saving-us/slide.pdf)
+ - [Source](https://github.com/MISP/misp-training/tree/master/x.6-how-information-sharing-is-saving-us)
+ - [COVID-19 MISP Sharing Community](https://www.misp-project.org/covid-19-misp/)
 ## It’s Goin’ Down: Finding New Threat Actors in Old Scriptures
 J. A. Guerrero-Saade (Co-Founder and Head of Research @ Stealth Security Startup)
 - [Blogpost](https://www.epicturla.com/blog/the-lost-nazar)