Should include detailed d/l instructions

[jeffshrager]

As this isn’t registered in the ql library, you should explain in the installation instructions where to d/l it to, and how to ql load it locally.

[quicklisp]

FYI, it's in Quicklisp and the directions at https://github.com/gmasching/sucle/blob/master/INSTALL.md#3how-to-use work for me to install it. It pops up a black box on my Mac and doesn't do anything after that, but that's a different issue.

[gregcman]

I'm working on documenting everything, writing test cases and simple examples.
76d4b2a

I urgently need to add a splash screen or a help menu to indicate what is happening.

1. If you focus on the window [which is a black screen] and press "e", it should capture the mouse and the screen should become blue [the sky], then the test world [if it exists, which it doesn't] should load.
2. This is where you can look around with the mouse and move with WASD, place blocks, etc...
3. But since there is nothing, you would have to place blocks with (world::plain-setblock x y z value) which is also currently undocumented