fix issue 123: Consider adding parameterisation as a callout in testing episode

[kkh451]

This pull requests closes #123

• The text re-uses a line from the code readability episode about DRY code which contains a link.
• As a result, have converted ordinary hyperlinks in 05_code_readability to cross-ref links (link.md) first, so the link can be re-used here.

NOTE!

**Looking at the second commit, formatting changes from opening in RStudio make this appear to have far more changes than actually made.

New callout is added on line 874 in a single block - this is the main change.

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Rendered Changes

:mag: Inspect the changes: https://github.com/carpentries-incubator/fair-research-software/compare/md-outputs..md-outputs-PR-132

The following changes were observed in the rendered markdown documents:

 05-code-readability.md |  18 +-
 06-code-testing.md     | 992 ++++++++++++++++++++++++++++---------------------
 links.md               |   9 +
 md5sum.txt             |   6 +-
 4 files changed, 593 insertions(+), 432 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.

:stopwatch: Updated at 2024-07-14 20:27:19 +0000