docs: update README and bump version ready for 0.1.0

add tests to the entry module

feat: add docker-compose.yml and initiallizer templates

tests: add tests to Provider class

feat: add convenient rake tasks for rails apps

feat: add vectorizer class

feat: add Provider class

feat: add error classes

feat: add migration helpers

feat: add generator for: model class and its associated migration file

feat: add migration script file generator

tests: add tests to rake tasks

feat: add error classes

feat: add Configuration class

feat: subclassed Railes::Railtie and load dotenv, configuration, migration helpers, and generators during initializing stage of the rails app