Execute the script with run_name == "__main__"

[pstjohn]

It would be helpful if scripts executed via mkdocs-gen-files could put in a if __name__ = "__main__" guard clause so they don't run if they're imported from elsewhere.

Currently that doesn't work, because runpy defaults to a run name of "<run_path>"

mkdocs-gen-files/mkdocs_gen_files/plugin.py

Line 38 in 7baa032

runpy.run_path(file_name)