Conda dependency updates + doc updates

[cmcconomy]

Pull Request template to the Mapping Challenge Open Solution

I had problems pulling, building, and running this on a sample satellite image. Biggest issues:

• source Makefile was failing
• once I adjusted the imports, I did not know where to put your winning model files

I've updated the environment.yml file, added a simple run script to make things easier, and updated the REPRODUCE md file to be clearer on what to do with the weight files.

Hope it's useful

[jakubczakon]

Thank you so much @cmcconomy and so sorry for the late answer. I've just added one comment about that API token.