* update configuration.cfg to secrets.cfg
* fix node count pretty print
* add more unit tests
* configure pytest to only run tests from the 'tests' directory
* add missing space
* remove static call to loading secrets file
* initial docs layout
* rename files and add images to getting started
* fix typos
* Add next steps to clusters docs
* Add custom scripts doc
* Initial text for spark submit
* fix merge conflict
* finish spark submit docs
* cloud storage docs
* fix typo in storage docs
* refactor some docs
* pr feedback
* add link to Getting Started in creating account details in main readme