Fix pip license error + add pip install command to readme

[janosh]

As a follow-up to #1417, this should fix the pip license error and inform users through the readme that GAM can now be installed with pip.

Closes #720.

[taers232c]

I got this: warning: the 'license_file' option is deprecated, use 'license_files' instead

I think you want:
license_files = ('LICENSE',)

[jay0lee]

Let's hold off on the readme changes until this is stable and (maybe) on PyPi.

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On Sat, Aug 28, 2021, 9:50 AM Ross Scroggs ***@***.***> wrote: I got this: warning: the 'license_file' option is deprecated, use 'license_files' instead — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#1419 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABDIZMGGDT2TJTES7AL4TN3T7DSQ5ANCNFSM5C662ETA> .

[taers232c]

Where do the discovery document .json files reside?
Where does GamCommands.txt reside?

[janosh]

Let's hold off on the readme changes until this is stable and (maybe) on

@jay0lee Sure.

I got this: warning: the 'license_file' option is deprecated, use 'license_files' instead

Interesting. This deprecation is somewhat recent but I'm still surprised I've never seen this warning before.

[janosh]

@jay0lee What's your current take on releasing to PyPI?