Adding a hash to properly route to the choicenames url

[zachhweed]

This is in relation to #428

Thanks!

[codecov-io]

Codecov Report

Merging #429 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #429   +/-   ##
=======================================
  Coverage   82.72%   82.72%           
=======================================
  Files          23       23           
  Lines        3386     3386           
  Branches      786      786           
=======================================
  Hits         2801     2801           
  Misses        439      439           
  Partials      146      146

Impacted Files	Coverage Δ
pyxform/xls2json.py	78% <ø> (ø)	⬆️

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[lognaturel]

Thanks so much for picking this up, @zachhweed and welcome! If you're interested in working with pyxform more, check out https://forum.opendatakit.org/ to learn more about the ODK community and join the developer Slack channel #xlsform-code at https://slack.opendatakit.org/.