docs(Dropdown): fix DropdownRemoteExample

[patrikmolsson]

Fixes #2125

[codecov-io]

Codecov Report

Merging #2126 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #2126   +/-   ##
=======================================
  Coverage   99.76%   99.76%           
=======================================
  Files         150      150           
  Lines        2597     2597           
=======================================
  Hits         2591     2591           
  Misses          6        6

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[levithomason]

Thanks!

[levithomason]

Released in semantic-ui-react@0.75.0