adding cell metadata for extraction into docs

[Blackmist]

Description

Adds metadata tag named "name" to code cells. Tags allow us to extract code cells into documentation, meaning docs can always pull from the sample as the single source of truth.

Checklist

• [ x ] I have read the contribution guidelines
• [ x ] I have coordinated with the docs team ([email protected]) if this PR deletes files or changes any file names or file extensions.
• [ x ] This notebook or file is added to the CODEOWNERS file, pointing to the author or the author's team.

[kdestin]

We currently strip out all metadata from notebooks. We would need to make an exception for that specific field for CI to pass.

[kdestin]

Could "name" be changed to be more descriptive (e.g. Azure-Docs-Code-Sample)?

[Blackmist]

@kdestin Unfortunately no. The docfx publishing system we use for docs.microsoft.com looks for the "name" tag. It'd take a feature request to the platform team to change it. The value of that tag has to be unique and can be whatever.