Added fixtures for all of the documented symbols supported for scheme either via scheme or the lispy list in PMP.
Noticed that the sections were out of order
Wrong comment type
Added sections in preparation for covering all along with fixes.
Scheme mode needs explicit enablement. Right now it works fine for lambda, since scheme-mode's definition in scheme.el requires lisp-mode, this always works. But if that ever changed it would break, so making it verbose.
Forgot to add lambda test
Added entries for greek caps
Added fixtures for lower case greek letters
Correct location
Last Scheme entry