docs(BUX-442): updates readme and code standards

[jakubmkowalski]

Pull Request Checklist

• 📖 I created my PR using provided : CODE_STANDARDS
• 📖 I have read the short Code of Conduct: CODE_OF_CONDUCT
• 🏠 I tested my changes locally.
• ✅ I have provided tests for my changes.
• 📝 I have used conventional commits.
• 📗 I have updated any related documentation.
• 💾 PR was issued based on the Github or Jira issue.

New version of README, restyled and updated CODE_STANDARDS

[mergify]

Welcome to our open-source project @jakubmkowalski! 💘

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (496abed) 46.52% compared to head (410a605) 46.52%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #180   +/-   ##
=======================================
  Coverage   46.52%   46.52%           
=======================================
  Files          14       14           
  Lines        1122     1122           
=======================================
  Hits          522      522           
  Misses        543      543           
  Partials       57       57           

Flag	Coverage Δ
unittests	46.52% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

---

Continue to review full report in Codecov by Sentry.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 496abed...410a605. Read the comment docs.