Azure-devops-docs: Checkout - Allow tagging on completion

[adriantorrie]

Add an attribute to checkout that allows the git repo to be tagged on success.

Raised in https://github.com/microsoft/azure-pipelines-yaml/issues/139 and https://github.com/microsoft/azure-pipelines-yaml/issues/325

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Document Details

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• ID: 7458d5b2-1bb7-7d87-7ce6-2b0c430b0155
• Version Independent ID: edf5bbd3-a3f0-5426-e985-31290f8afd05
• Content: YAML schema - Azure Pipelines
• Content Source: docs/pipelines/yaml-schema.md
• Product: devops
• Technology: devops-cicd
• GitHub Login: @vtbassmatt
• Microsoft Alias: macoope

[vtbassmatt]

This is a product feature request, not a documentation bug.