Publish version 1.0.0

[SimonLab]

Now that #5 has been merged and that we have a first version of the API ready we can publish the package to https://package.elm-lang.org/

• add a new tag which match the version of your package: git tag -a 1.0.0 -m "first release"
• push the new tag: git push --tags
• publish the package elm publish

Elm will check that your package is ready to be published:

I this case I need to update the Readme first, see #2

• add example UI that can be build with the package
  
• example of the running tests:
  

[SimonLab]

the package is now available here: https://package.elm-lang.org/packages/dwyl/elm-criteria/latest/