Fix Double Space in Quickstart Code Example

[codecov-io]

Codecov Report

Merging #79 into master will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #79   +/-   ##
=======================================
  Coverage   92.52%   92.52%           
=======================================
  Files          11       11           
  Lines         682      682           
=======================================
  Hits          631      631           
  Misses         51       51           

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[PedroBern]

thanks!