Add video tutorial content to docs site

[jbw976]

What's Missing?

@vfarcic has produced some great tutorial videos on Crossplane recently. 2 parts of this series are available right now and they are being published to the following playlist: https://www.youtube.com/playlist?list=PLyicRj904Z99i8U5JaNW5X3AyBvfQz-16

Having these tutorial videos easily discoverable on the docs site would complement the existing getting started guides that are text based. The videos would be a great option for folks that learn better with video content. Hopefully this option will help accelerate their journey as well.

How best to expose this content on the docs site? Maybe they could be linked from the current getting started guide section. If they are not embedded with a full video player experience, they should probably at least be shown as a large thumbnail to help catch people's eyes as they are scrolling. Linking from multiple places would also help with discoverability.