84 add some more examples of package managers

[Scottan]

Closes #84

Also improves grammar, adds some more links and other minor tweaks to the language in this section

[github-actions]

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Rendered Changes

🔍 Inspect the changes: https://github.com/UoMResearchIT/Programming-With-Python/compare/md-outputs..md-outputs-PR-94

The following changes were observed in the rendered markdown documents:

 04-software_package_management.md | 8 +++++---
 md5sum.txt                        | 2 +-
 2 files changed, 6 insertions(+), 4 deletions(-)

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⏱️ Updated at 2026-04-22 08:30:02 +0000

[andrewgait]

Looks good to me - approved.

[Scottan]

I edited the link to packaging project because it was complaining about me using "here" for the link text.

A full list of tools can be found here.

to:

See here for a full list of packaging projects.

I'm going to assume it's still ok so going to bypass rules and merge.