Hanami contributors

All jasoncharnes commits

Update getting-started.mdhanami.github.io
Adds testshanami
Converts camel case app name into snake case when looking for application during action generation. Also found an issue with those of use who experience an issue when generating actions with zsh and have to use '/' instead of '#' between controller and action.hanami
Merge assert_model_have_valid_name! into assert_model_namehanami
Adds test for error message, adds more descriptionshanami
Adds validation for model namehanami