README install options are too complicated

[trptcolin]

There should be exactly two blessed ways to run the koans. Using lein 2 is a good idea to get people a good REPL and have them ready to actually do things when they're done w/ the koans. But there's also a lot of value in the easy zipfile-based approach where you just download, unzip, and go.

Calling those 2 paths out specifically would probably help, so people can follow one thread rather than searching for their option in every section.

[trptcolin]

The zipfile-based approach needs to be totally separated so it's obvious it's a different path, might be out of date, best for zero-setup, etc.

[technomancy]

Why not include a copy of the bin/lein script in the zip file that can do the whole self-install thing once decompressed?

[trptcolin]

That's a really interesting idea I hadn't thought of. The initial reason for the zipfile releases was for conferences/workshops where I couldn't count on having internet connections, but maybe that's just a 3rd use case...)

[draeath]

Also seems the recommendation to make a fork so you can utilize the network tab are no longer good either. "Couldn’t load network graph. Too many forks to display."

Thanks, Github!

[AlJohri]

On OS X, the recommended instructions should probably be:

brew install leiningen
lein koan run