PEO-834 | Fill rails code quality checking section

[Bulatkin]

JIRA ticket: https://garage.atlassian.net/browse/PEO-834

Description

• Filled rails code quality checking section

Before submitting the merge request make sure the following are checked

• [x] Followed the style guidelines of this project
• [x] Performed a self-review of own code
• [x] Wrote the tests that prove that fix is effective/that feature works

Notable changes

• Added rails_best_practices to outputter quality section
• Filled code quality checking section template