Update CONTRIBUTING.md

[Veerhan-glitch]

This is with regards to issue #244

What has been done:

A proper guideline for contributing to the repo has been added

What hasn't been done:

Discord sever link is to be added on lines 26 and 72

If you need me to change/improve on anything please tell me

regards

p.s. sorry for the #249 pr, i did not meant to create it

[euanwm]

Can we add this in with regards to PR / fork naming:

Branches are named using the following convention:

feature/ for new feature implementations
fix/ for broken code / build / bug fixes
chore/ non-breaking & non-fixing code changes such as linting, formatting, etc.

[Veerhan-glitch]

I have made the changes pls review and revert

[codecov[bot]]

Codecov Report

All modified lines are covered by tests :white_check_mark:

Comparison is base (6165ea5) 91.11% compared to head (136c75c) 91.11%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## development #250 +/- ## ============================================ Coverage 91.11% 91.11% ============================================ Files 11 11 Lines 360 360 ============================================ Hits 328 328 Misses 25 25 Partials 7 7 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.