Adding and expanding alt text for figures in episodes in section 5

[matt-graham]

Resolves #501

In some cases figures here already have alt-text attributes set but they are fairly minimal and not sufficient to convey same information as included in image so I have tried to expand these to be more descriptive.

[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/carpentries-incubator/python-intermediate-development/compare/md-outputs..md-outputs-PR-502

The following changes were observed in the rendered markdown documents:

 50-section5-intro.md               |  5 ++++-
 51-managing-software.md            | 22 +++++++++++-----------
 53-improvement-through-feedback.md |  8 ++++----
 md5sum.txt                         |  6 +++---
 4 files changed, 22 insertions(+), 19 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 2025-12-23 10:41:30 +0000

[anenadic]

Also see #513 - where alt text was included in mermaid diagrams @matt-graham.