Add gem, and some modificatiosn in gemspec
Merge branch 'master' of https://github.com/ismaGNU/bank_scrap

* 'master' of https://github.com/ismaGNU/bank_scrap:
  Fixed typos
  Updated README with specific CLI instructions for each bank
  Fixed typo
  Updated README.md
  Use camelcase and fixed typo
  Bump version
  Updated README.md with banks support table