remove period from line with bash command

[maneesha]

This removes the period from the line demonstrating cd - because it makes it look like it is part of the command and can be confusing. Since this is a standalone line, the period may not be necessary for the syntax of the sentence.

[github-actions]

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Rendered Changes

🔍 Inspect the changes: https://github.com/LibraryCarpentry/lc-shell/compare/md-outputs..md-outputs-PR-264

The following changes were observed in the rendered markdown documents:

 02-navigating-the-filesystem.md | 2 +-
 md5sum.txt                      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

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⏱️ Updated at 2024-05-01 18:36:26 +0000