Come up with better selling points in "Key features"

[loziniak]

For example "Homoiconicity" could be perhaps replaced by something more attractive to developers. Initiated by discussion here: #17 (comment)

[dander]

For homoiconicity, instead it could be "data oriented", or "reflective". Maybe "expressive", but that could be its own topic.

Could also mention:

• both compiled (standalone executable) and interpreted
• lots of built-in functionality

[loziniak]

Temporarily I "homoiconicity" to "code is data" in #19 .

* both compiled (standalone executable) and interpreted
* lots of built-in functionality

Both are fine. I wonder what we could change it for, because there have to be exactly 6 features in the config. Maybe homoiconicity is the one to get rid of...

[loziniak]

more info in updated exercism docs:
exercism/docs@1be74f4