Minor cleanup throughout the readme

[darrylhein]

Feel free to edit/discard – just trying to cleanup the grammar.

[codecov]

Codecov Report

Merging #24 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #24   +/-   ##
=======================================
  Coverage   91.07%   91.07%           
=======================================
  Files           1        1           
  Lines          56       56           
  Branches       21       21           
=======================================
  Hits           51       51           
  Misses          1        1           
  Partials        4        4

---

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 154fc9b...b233680. Read the comment docs.

[kevinongko]

Thanks @darrylhein :D