DOCS-718 Google SSO for signup/sign-in

[kimsauce]

Purpose of this pull request

Google SSO for signup/sign-in

Select the type of change

• [x] Minor Changes - Typos, formatting, slight revisions
• [x] 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)

https://sumologic.atlassian.net/browse/DOCS-718

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• To see the specific tasks where the Asana app for GitHub is being used, see below:
  • https://app.asana.com/0/0/1209001645456780
  • https://app.asana.com/0/0/1209001645402812
  • https://app.asana.com/0/0/1209467918115657

[soc-service-agent]

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