Update demo.md

[v-caxian]

No description provided.

[prmerger-test]

@v-caxian : Thanks for your contribution! The author(s) have been notified to review your proposed change. @adunndevster

[learn-build-service-prod]

Learn Build status updates of commit ff3a1c5:

❌ Validation status: errors

Please follow instructions here which may help to resolve issue.

File	Status	Preview URL	Details
	❌Error		Details

• [Error: CannotFindPublishConfigFile] .openpublishing.publish.config.json couldn't be found under repository C:/LocalRun/W\qnki-s

For more details, please refer to the build report.

Note: Your PR may contain errors or warnings or suggestions unrelated to the files you changed. This happens when external dependencies like GitHub alias, Microsoft alias, cross repo links are updated. Please use these instructions to resolve them.

For any questions, please:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel

[prmerger-test]

@v-caxian : Thanks for your contribution! The author(s) have been notified to review your proposed change. @adunndevster

[prmerger-test]

@v-caxian : Thanks for your contribution! The author(s) have been notified to review your proposed change. @adunndevster