Improve setup documentation, some input from metrochart project. Fixes #46.
Improve setup documentation, some input from metrochart project. Fixes #46.

nlesc-sherlock/spiraljs,nlesc-sherlock/punchcardjs,nlesc-sherlock/punchcardjs,nlesc-sherlock/spiraljs,nlesc-sherlock/punchcardjs-demo,nlesc-sherlock/punchcardjs-demo,nlesc-sherlock/punchcardjs-demo,nlesc-sherlock/punchcardjs