DOCS-567 - Enable and disable playbooks

[jpipkin1]

Purpose of this pull request

This pull request adds a section on enabling or disabling playbooks to this article:
https://help.sumologic.com/docs/platform-services/automation-service/automation-service-playbooks/

Select the type of change

• Minor Changes - Typos, formatting, slight revisions
• Update Content - Revisions, updating sections
• New Content - New features, sections, pages, tutorials
• Site and Tools - .clabot, version updates, maintenance, dependencies, new packages for the site (Docusaurus, Gatsby, React, etc.)

Ticket (if applicable)

DOCS-567

[soc-service-agent]

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