Fix typo in installation-guide.md

[massie]

Summary by Sourcery

Fix a typo in the installation guide to improve clarity

Documentation:

• Correct the misspelling of “opereating” to “operating” in installation-guide.md
• Adjust phrasing to pluralize “operating system(s)” for accuracy

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

Fixed a typo and improved clarity in the installation guide for installing alongside other operating systems.

File-Level Changes

Change	Details	Files
Correct typo and clarify installation alongside other OS	Replaced misspelled 'opereating' with 'operating' Added '(s)' to 'operating system' for plural form	user/installation-guide/installation-guide.md

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[sourcery-ai]

Hey there - I've reviewed your changes and they look great!

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[ericbsd]

LGTM

[ericbsd]

Thanks for the PR.