luno-python: add PyPI description and update README badges

[echarrod]

Summary

• Add long_description to setup.py reading from README.md so PyPI renders the project description instead of the placeholder message
• Update README badges: replace broken Travis CI badge with GitHub Actions, add PyPI version, Python versions, and MIT licence badges
• Add link to examples/ folder after the code snippet
• Fix bandit pre-commit hook: remove unknown test ID B107 from pyproject.toml skips

Summary by CodeRabbit

Release Notes

• Documentation

  • Updated README with PyPI and licence badges
  • Replaced CI badge with GitHub Actions
  • Added reference to examples folder for additional usage guidance

• Chores

  • Improved package metadata and description on PyPI
  • Adjusted security tooling configuration

[coderabbitai]

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 94b8f122-96d7-419e-a68d-b3e8bbec6dd0

📥 Commits

Reviewing files that changed from the base of the PR and between 59e08db and 488c815.

📒 Files selected for processing (3)

• .github/workflows/test.yml
• README.md
• setup.py

📝 Walkthrough

Walkthrough

The pull request updates documentation and packaging metadata: README.md was retitled from “Luno API” to “Luno Python SDK”, the Travis CI badge was replaced with a GitHub Actions “Run Tests” badge, PyPI and supported Python version badges plus an MIT license badge were added, and a note pointing to the ./examples folder was appended. setup.py now uses Path(...).read_text(encoding="utf-8") to populate long_description and sets long_description_content_type to text/markdown; the package description string was also adjusted. pyproject.toml removed the Bandit skip rule B107.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~12 minutes

Poem

🐰 A tiny hop for README bright,
New badges gleam in testing light,
setup reads words with careful care,
Bandit watches — I twitch my ear,
Examples beckon—come and share! 🥕

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately and concisely summarises the main changes: adding PyPI description metadata to setup.py and updating README badges.
Description check	✅ Passed	The description is directly related to the changeset, providing clear details about each modification across README.md, setup.py, and pyproject.toml.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch echarrod-pypi-description-badges

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.
Inline comments:
In `@README.md`:
- Line 8: The license badge link in the README uses the old branch name "master"
in the URL; update the markdown badge URL by replacing "blob/master/LICENSE.txt"
with "blob/main/LICENSE.txt" in the badge line (the [![License: MIT](...)](...)
markdown) so the badge points to the repository's main branch.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 88b85222-95ab-473c-a4d3-a6e193a501f8

📥 Commits

Reviewing files that changed from the base of the PR and between 002cdde and 97b7163.

📒 Files selected for processing (3)

• README.md
• pyproject.toml
• setup.py

💤 Files with no reviewable changes (1)

• pyproject.toml

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud