docs: add bad contribution section

[Kouteki]

Add a section in CONTRIBUTING.md that outlines examples of bad practices.

[Gno2D2]

🛠 PR Checks Summary

All Automated Checks passed. ✅

Manual Checks (for Reviewers):

• SKIP: Do not block the CI for this PR

Read More

🤖 This bot helps streamline PR reviews by verifying automated checks and providing guidance for contributors and reviewers.

✅ Automated Checks (for Contributors):

🟢 The pull request head branch must be up-to-date with its base (more info)

☑️ Contributor Actions:

1. Fix any issues flagged by automated checks.
2. Follow the Contributor Checklist to ensure your PR is ready for review.
   • Add new tests, or document why they are unnecessary.
   • Provide clear examples/screenshots, if necessary.
   • Update documentation, if required.
   • Ensure no breaking changes, or include BREAKING CHANGE notes.
   • Link related issues/PRs, where applicable.

☑️ Reviewer Actions:

1. Complete manual checks for the PR, including the guidelines and additional checks if applicable.

📚 Resources:

• Report a bug with the bot.
• View the bot’s configuration file.

Debug

Automated Checks

The pull request head branch must be up-to-date with its base (more info)

If

🟢 Condition met
└── 🟢 On every pull request

Then

🟢 Requirement satisfied
└── 🟢 Head branch (kouteki-patch) is up to date with base (master): behind by 0 / ahead by 1

Manual Checks

**SKIP**: Do not block the CI for this PR

If

🟢 Condition met
└── 🟢 On every pull request

Can be checked by

• Any user with comment edit permission

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

📢 Thoughts on this report? Let us know!