Adding solution and guidance to questions in advanced-containers.md

[jcohen02]

This PR adds a solution to one of the questions towards the top of advanced-containers.md. The second question that didn't have a solution isn't really intended to have one since it highlights the question being answered in the next section of the material. To address this, the PR adds a note that the question is there as something to think about, with the answer worked through in the content below.

Closes #228.

[github-actions]

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Rendered Changes

🔍 Inspect the changes: https://github.com/carpentries-incubator/docker-introduction/compare/md-outputs..md-outputs-PR-242

The following changes were observed in the rendered markdown documents:

 advanced-containers.md | 38 ++++++++++++++++++++++++++++++++++++--
 md5sum.txt             |  2 +-
 2 files changed, 37 insertions(+), 3 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 2024-08-01 19:52:32 +0000

[aturner-epcc]

All good, merging...