Remove root index.md

[malloryfreeberg]

Location

Root directory of this repo.

Change

Remove the index.md file in the root directory. Keep the file docs/index.md as this is the file that generates the landing page of the website. Before removing index.md, check that this won't break the website. Maybe GHpages/Jekyll expects is there? If so, consider keeping the file but deleting all the content.

Reason

It is confusing to have both index.md and docs/index.md (e.g. PR #19). The latter generates the landing page of the website. The former isn't used for anything.