fixed readme example

[kumarharsh]

There was an inconsistency between the component query function returning a prop and a different prop being used in the render function of the component itself. This PR clarifies what the author meant.

Also some very minor fixes in word hyphenation

[codecov[bot]]

Codecov Report

Merging #96 into master will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #96   +/-   ##
=======================================
  Coverage   98.38%   98.38%           
=======================================
  Files           5        5           
  Lines          62       62           
  Branches       15       15           
=======================================
  Hits           61       61           
  Misses          1        1

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