Update README & Other Considerations

[bytecauldron]

Before we get into the meat and potatoes of documentation, it might be a good idea to beef up the README file.

• Dedicated section highlighting major features.
• "Getting Started" section with instructions on how to install. (I.E. provide a Unity Package. Install instructions through a git url and/or local install?) This would also link to an inevitable quickstart doc.
• Contributing File.
• License (Let people know what they are getting into if they decide to use this for commercial/non-commercial use.)
• Sick logo (of course).

More than happy to help with any of this.