Code downloads from tutorial documentation do not work

[bnlawrence]

I am looking at the field digitise documentation.

There are two download script options at the bottom. Neither work (on Chrome or Brave). Both return the same error:

Which is possibly not surprising since the link is https://ncas-cms.github.io/cf-python/_downloads/*_recipe.py.

[bnlawrence]

I should say that I found the relevant file on GitHub, but the dataset which it reads (levtype_sfc.nc) does not appear to be in the tutorial zip data in the same place.