Update/improve links to "Other great resources" in two episodes

[matthieu-bruneaux]

Closes #856.

In the "Other great resources" links in two episodes:

• fixed the link to "R for Data Science" to point to the latest edition
• added a short description for each link (e.g. book/pdf file/online doc/video)

[github-actions]

Thank you!

Thank you for your pull request 😃

🤖 This automated message can help you check the rendered files in your submission for clarity. If you have any questions, please feel free to open an issue in {sandpaper}.

If you have files that automatically render output (e.g. R Markdown), then you should check for the following:

• 🎯 correct output
• 🖼️ correct figures
• ❓ new warnings
• ‼️ new errors

Rendered Changes

🔍 Inspect the changes: https://github.com/swcarpentry/r-novice-gapminder/compare/md-outputs..md-outputs-PR-878

The following changes were observed in the rendered markdown documents:

 13-dplyr.md | 8 ++++----
 14-tidyr.md | 8 ++++----
 md5sum.txt  | 4 ++--
 3 files changed, 10 insertions(+), 10 deletions(-)

What does this mean?

If you have source files that require output and figures to be generated (e.g. R Markdown), then it is important to make sure the generated figures and output are reproducible.

This output provides a way for you to inspect the output in a diff-friendly manner so that it's easy to see the changes that occur due to new software versions or randomisation.

⏱️ Updated at 2023-11-23 18:18:22 +0000