Registry examples

[tony]

This example found that the defaults will get overwritten by a URL running through all matchers. It should only use the defaults of the one ultimately being picked

And how do we pick the "best" one?

[codecov]

Codecov Report

Merging #428 (d42edc9) into master (ea64045) will not change coverage.
The diff coverage is n/a.

❗ Current head d42edc9 differs from pull request most recent head 957430a. Consider uploading reports for the commit 957430a to get more accurate results

@@           Coverage Diff           @@
##           master     #428   +/-   ##
=======================================
  Coverage   62.87%   62.87%           
=======================================
  Files          39       39           
  Lines        2947     2947           
  Branches      654      654           
=======================================
  Hits         1853     1853           
  Misses        659      659           
  Partials      435      435           

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