Added here installation text

[fordfishman]

Added information to the "Before We Start" episode to ensure that the here package is installed before use.

Closes #478

[github-actions[bot]]

Thank you!

Thank you for your pull request :smiley:

:robot: 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:

• :dart: correct output
• :framed_picture: correct figures
• :question: new warnings
• :bangbang: new errors

Rendered Changes

:mag: Inspect the changes: https://github.com/datacarpentry/r-socialsci/compare/md-outputs..md-outputs-PR-483

The following changes were observed in the rendered markdown documents:

 00-intro.md       |    7 +
 config.yaml (new) |   88 +++
 md5sum.txt        |    2 +-
 renv.lock (new)   | 1570 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 1666 insertions(+), 1 deletion(-)

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 2023-09-08 14:27:48 +0000

[jessesadler]

Great! Thanks for making these improvements.