Hackathon Scenario 1 mira model has wrong petri net struture

[djinnome]

Hi @bgyori

Hopefully fixing the controller shouldn't be too heavy a lift:

In https://github.com/indralab/mira/blob/hackathon/notebooks/hackathon_2023.07/scenario1.ipynb

cell[4]:

t1 = ControlledConversion(subject=c['S'],
                          outcome=c['E'],
                          controller=c['E'],
                          rate_law=S*I*beta / N)

should be:

t1 = ControlledConversion(subject=c['S'],
                          outcome=c['E'],
                          controller=c['I'],
                          rate_law=S*I*beta / N)

This results in an incorrect AMR:

https://github.com/indralab/mira/blob/36994e15bb0ed935f475bff78e1204445522cfb5/notebooks/hackathon_2023.07/scenario1_a.json#L71-L81

Which should be:

  "transitions": [
   {
    "id": "t1",
    "input": [
     "I",
     "S"
    ],
    "output": [
     "E",
     "I"
    ],