Fix logo alignment on npm

[emmatown]

What:

Why:

How:

Checklist:

• Documentation
• Tests
• Code complete

It should look something like this:

This also fixes the link to join slack.

[codecov-io]

Codecov Report

Merging #207 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #207   +/-   ##
=======================================
  Coverage   90.12%   90.12%           
=======================================
  Files          22       22           
  Lines         952      952           
  Branches      255      255           
=======================================
  Hits          858      858           
  Misses         76       76           
  Partials       18       18

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update d59082e...c6a8f9a. Read the comment docs.