S7 Scheme should be added to the Implementation part

[da-liii]

I started another Scheme implementation focusing on libraries:
https://github.com/LiiiLabs/goldfish

Goldfish Scheme is not that awesome, but S7 Scheme is awesome enough!

[lassik]

AFAICT the word "Awesome" is intended to be interpreted as Millennial hyperbole.