Creating a 🐍📦 with ℹ, 👷 and 📚

[dpshelio]

Improve Charlene's package (#45) even further by adding basic information, a documentation website and the config to run the tests automatically on Github Actions.

1. Choose who in your team is writing now! (make sure you've got a fork and a local copy from Charlene's repository)

2. Write three files that will make this library sharable, citable and descriptive.

3. Create a .github/workflows/pytest.yml file to run the test automatically each time something it's pushed to the repository (See also solutions to the exercise Use CI to run the tests for you #21.

4. Optional: As we did last week, generate a documentation website using sphinx. (Using the githubpages sphinx extension and pushing the build directory into a gh-pages branch will show you the documentation in the repository's website)

5. Share your solution even if it's a work-in-progress as a pull request to Charlene's repository mentioning this issue (by including the text Addresses UCL-COMP0233-22-23/RSE-Classwork#46 in the pull request description), remember to mention your team members too! (with @github_username)

6. 🎉 Congratulations, you've created an awesome research software Python package! 👏👏👏

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Sample solution:
UCL-COMP0233-22-23/sagittal_average#4 and (UCL-COMP0233-22-23/sagittal_average#5 for the automation of step 4)