Contributing is always appreciated. But before contributing, you need to respect the few points listed below.
We know coding is really cool, but please before contributing start by discussing your idea(s) (features, fixes, ...) with the rest of the team by opening an issue.
Create a branch from the main branch.
Your branch name can be something like feature/new-feature or fix/fix-this-bug.
If the code you writed needs to be documented, please add documentation. This can be done in the README.md file, in the code with clear comments, ...
Please before committing, test all the modifications you made correctly.
When committing, please write a good commit message.
If you respect all the points listed above, you can then create a pull request.
If your pull request fixes an opened issue, please mention it in the pull request message with #123 (issue's number).
Don't forget to add a reviewer to your pull request.