Unescape PR title and fix some nits

[Leko]

Fixed #35

[codecov-io]

Codecov Report

Merging #37 into master will increase coverage by 2.78%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master      #37      +/-   ##
==========================================
+ Coverage   34.25%   37.03%   +2.78%     
==========================================
  Files           7        8       +1     
  Lines         181      189       +8     
  Branches       29       29              
==========================================
+ Hits           62       70       +8     
  Misses        102      102              
  Partials       17       17

Impacted Files	Coverage Δ
packages/hothouse/src/pullRequest.js	100% <ø> (ø)

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