Adjust CancellationTokens spelling and add missing syntax space

[Kiruyuto]

As the title says
There were also a few occurrences of "cancelation" when not referring directly to CancellationTokens, so I left them as they were. Lmk if those should be changed too

[Kiruyuto]

@microsoft-github-policy-service agree

[prmerger-automator]

@Kiruyuto : Thanks for your contribution! The author(s) and reviewer(s) have been notified to review your proposed change.

[prmerger-automator]

@Kiruyuto : Thanks for your contribution! The author(s) and reviewer(s) have been notified to review your proposed change.

[learn-build-service-prod]

Learn Build status updates of commit 555d1d2:

⚠️ Validation status: warnings

File	Status	Preview URL	Details
articles/azure-functions/dotnet-isolated-in-process-differences.md	⚠️Warning		Details
articles/azure-functions/dotnet-isolated-process-guide.md	✅Succeeded
articles/azure-functions/functions-scenarios.md	✅Succeeded

articles/azure-functions/dotnet-isolated-in-process-differences.md

• Line 42, Column 24: [Warning: bookmark-not-found - See documentation] Cannot find bookmark '#cancelation-tokens' in 'articles/azure-functions/dotnet-isolated-process-guide.md', did you mean '#cancellation-tokens'?

For more details, please refer to the build report.

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[Court72]

@ggailey777

Can you review the proposed changes?

Important: When the changes are ready for publication, adding a #sign-off comment is the best way to signal that the PR is ready for the review team to merge.

#label:"aq-pr-triaged"
@MicrosoftDocs/public-repo-pr-review-team