@brianruf suggested collapsing the code samples (of the Metaschema definitions and equivalent instances) would increase the accessibility of this tutorial.

Brian opened this in response: #277. Thanks to him!

Feedback from @brianruf and @jimstevensedc: this tutorial and/or potentially future tutorials should cover two perspectives, clearly and intentionally:

1. How you will write a tool to do the function covered in the tutorial (what we are doing now)
2. How we use existing tools (XSLT implementation, oscal-cli metaschema subcommand, others TBD) that can curretly exercise that function/use case as a user without writing your own (we do not cover this yet)

@david-waltermire-nist also asked for me in a call to do the following before asking for re-review:

1. Add accordion style tab for instance examples in JSON, XML, YAML.
2. Add tutorial landing page in place of this page in PR, move tutorial to its own page, link to the relocated tutorial on the new landing page

@david-waltermire-nist also asked for me in a call to do the following before asking for re-review:

1. Add accordion style tab for instance examples in JSON, XML, YAML.

2. Add tutorial landing page in place of this page in PR, move tutorial to its own page, link to the relocated tutorial on the new landing page

Ok @david-waltermire-nist, done and ready for review.

The build failure, FYI, is waiting on #278 to build successfully in main.

@wendellpiez I included all the feedback you provided in your previous review. I will do a final pass for minor typos, but I need you, @david-waltermire-nist, or @nikitawootten-nist. I might find a typo or two, but it is ready to go.