PROBLEM:
We've created a YouTube video walking people through Holos and the Helm
Values tutorial, but now we need to embed it on the site for visitors to
watch.
SOLUTION:
* Create a `YouTube` MDX plugin
* Use that plugin on Overview and Helm Values
* Tune the video size/attributes using CSS
OUTCOME:
The Helm Values YouTube video is embedded on our site for visitors to
watch.
This commit removes the extra `./platform` argument from any of the
current tutorial/topic docs to reflect the change that was made to
`holos render platform` in version `0.100.0`.
Add a helm values tutorial which is a cut down version of the v1alpha4
helm guide. The httpbin kustomize will immediately follow building on
the prometheus and blackbox charts.
