Demos

[olynch]

We should have demos on the website which are built and deployed in CI. These serve as the "flagship" Semagrams apps, and should include:

• graph editor
• Petri net editor, with included equation display
• wiring diagrams editor
• category of elements for an arbitrary schema

We should have selenium tests for all of these apps running in CI, and any changes to Semagrams need to involve refactoring all of these apps.

[olynch]

semagrams.algebraicjulia.org