Can't find pyoxidizer.bzl file

It's entirely possible that this is my own incompetence but when I create a new PyOxidizer project with `pyoxidizer init MyApp` I can't find a `pyoxidizer.bzl` file in the root of the newly created project. There is a `pyoxidizer.toml` file which seems to have similar options. Am I missing something obvious here? The project just launches a REPL when ran and I don't see options in the TOML file to get PyOxidizer to launch a `.py` file for instance.

I'm running PyOxidizer 0.4.0.

Reproduce `pyoxidizer init MyApp` with PyOxidizer 0.4.0 and inspect the generated `pyoxidizer.toml` alongside the missing `pyoxidizer.bzl`. Determine whether the project template or documentation should explain the configuration format and how to launch a `.py` file instead of a REPL; done means the expected file and setup are documented clearly.

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