Fixed typing error in install command

[Eli-Schei]

the package name @rushstack/heft had a typing error.

Category

• Content fix
• New article

Related issues

not in any issues as far as I've seen

What's in this Pull Request?

Just a small typo fix

[learn-build-service-prod]

PoliCheck Scan Report

The following report lists PoliCheck issues in PR files. Before you merge the PR, you must fix all severity-1 and severity-2 issues. The AI Review Details column lists suggestions for either removing or replacing the terms. If you find a false positive result, mention it in a PR comment and include this text: #policheck-false-positive. This feedback helps reduce false positives in future scans.

✅ No issues found

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[learn-build-service-prod]

Learn Build status updates of commit 7c8e735:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/spfx/toolchain/customize-heft-toolchain-overview.md	✅Succeeded	View

For more details, please refer to the build report.

[andrewconnell]

Looks like this was fixed by Microsoft in the main branch after it was submitted, so it's moot at this point :-/

ref: 5e05162

But, thanks for the submission!