Updated Synapse Source control doc

[xiaoyuanzi1230]

I am from MSFT Synapse CSS team, recently I worked with my one of customers. They found if they are using custom parameter file to extract notebook referenceName as parameter, and they have large number of notebooks, when they make the publish, it will pop up a message shows "Your ARM template exceeds the limit of 256 parameters. Please use custom parameters in your ARM template if you need to do CI/CD integration." but it actually doesn't block anything, but we don't have a doc to mention this situation so made the customer confused.

So submitting this pull request to update the doc upon my local test.

Thanks a lot

Mars Xiang

[prmerger-automator]

@xiaoyuanzi1230 : 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 c79dfd9:

⚠️ Validation status: warnings

File	Status	Preview URL	Details
articles/synapse-analytics/cicd/source-control.md	⚠️Warning		Details
articles/synapse-analytics/cicd/media/parameters-exceed-limit-warning.png	✅Succeeded

articles/synapse-analytics/cicd/source-control.md

• Line 229, Column 22: [Warning: hard-coded-locale - See documentation] Link 'https://learn.microsoft.com/en-us/azure/synapse-analytics/cicd/continuous-integration-delivery#create-custom-parameters-in-the-workspace-template' contains locale code 'en-us'. For localizability, remove 'en-us' from links to most Microsoft sites.
• Line 229, Column 22: [Suggestion: docs-link-absolute - See documentation] Absolute link 'https://learn.microsoft.com/en-us/azure/synapse-analytics/cicd/continuous-integration-delivery#create-custom-parameters-in-the-workspace-template' will be broken in isolated environments. Replace with a relative link.

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

[v-dirichards]

@liudan66

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