Fix Prism Decision Tree Graphic

[pamgoodrich]

This is really hard to read. Figure out a way to make it more legible, perhaps by breaking it into smaller graphics or using a different tool.

https://meta.stoplight.io/docs/prism/ZG9jOjk1-01-mocking

Here's a link to the miro for this graphic:

https://miro.com/app/board/o9J_ll1ev5w=/

[pamgoodrich]

@sydstoplight : Can you take a look at this issue and let me know if it's something you'd like to tackle using Mermaid? It might take some time to figure out how to use that and how to make this graphic more legible. You can see some info about Mermaid here: https://meta.stoplight.io/docs/platform/ZG9jOjM3MTUxNjgw-stoplight-flavored-markdown#graphs-and-diagrams and here https://mermaid-js.github.io/mermaid/#/flowchart

Let me know!