Doc: Improve package install documentation

[jsirianni]

Description of Changes

Did some refactoring of the package install doc.

Please check that the PR fulfills these requirements

• [ ] Tests for the changes have been added (for bug fixes / features)
• [x] Docs have been added / updated (for bug fixes / features)
• [x] CI passes

[codecov[bot]]

Codecov Report

:exclamation: No coverage uploaded for pull request base (main@93c9769). Click here to learn what that means. The diff coverage is n/a.

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