Sample code for the article on f-strings

[lpozo]

Where to put new files:

• New files should go into a top-level subfolder, named after the article slug. For example: my-awesome-article

How to merge your changes:

1. Make sure the CI code style tests all pass (+ run the automatic code formatter if necessary).
2. Find an RP Team member on Slack and ask them to review & approve your PR.
3. Once the PR has one positive ("approved") review, GitHub lets you merge the PR.
4. 🎉

[martin-martin]

I think that for providing these code blocks as files it makes sense to wrap REPL session output into calls to print(). That's at least what I've been doing, to make it convenient for readers to run.

Do we have a guideline on doing/not doing that @gahjelle ?

[lpozo]

I guess that wrapping the code in calls to print() can confuse the reader because the code differs from the code in the article.