Create sciencecore:climaterisk demo

[jmunroe]

As part of the NASA TOPS-T ScienceCore:climaterisk project, we have created a set of .ipynb notebooks that teach users how to use NASA data to understand flood and wildfire.

Create a myst version of the sciencecore:climaterisk project that is accessible as

• a static myst HTML rendered site
• a dynamic HTML site backed by Thebe (authentication via GitHub)
• magic link to launch into JupyterLab environment

[agoose77]

Closing this as done, because all subtasks are complete