Hotfix for treatment_type missing

[daisieh]

Even though treatment_type is Required, we should be able to handle it as missing.

I also missed that radiation_therapy_fractions is an integer in the moh model, so I updated the moh_template and the diff.

I then realized that I didn't explain how to check to see if that update should happen, so I put in a convenience script to update the moh_template, and updated the README to explain how to know if you need to update and how to update.

[yavyx]

Thank you, I tried editing the template myself and broke CI, so I deleted the commit :)

[daisieh]

So does that mean the instructions are bad? Or the script is bad?

[yavyx]

Before this PR, I noticed the same issue in the template and tried to fix it by committing directly to main, but it broke CI so I deleted it. That said, I think I understand the instructions but I find it hard to edit a diff file by hand since it needs very specific formatting and line numbers, I'm not sure if there's a better solution though.

[yavyx]

The hotfix for missing treatments is working, I added the same line in my local branch to bypass the error.

[daisieh]

Before this PR, I noticed the same issue in the template and tried to fix it by committing directly to main, but it broke CI so I deleted it. That said, I think I understand the instructions but I find it hard to edit a diff file by hand since it needs very specific formatting and line numbers, I'm not sure if there's a better solution though.

I don't think you should have to edit the diff by hand...you should be able to run the script and only commit any changes that the script makes to moh_diffs.txt.