fixed broken example URLS

[johnrees]

No description provided.

[codecov-io]

Codecov Report

Merging #22 into master will not change coverage.

@@           Coverage Diff           @@
##           master      #22   +/-   ##
=======================================
  Coverage   99.09%   99.09%           
=======================================
  Files           3        3           
  Lines         110      110           
  Branches       15       15           
=======================================
  Hits          109      109           
  Misses          1        1

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[jcouyang]

thanks mate