MOps Handbook Updates 20200831 - 20200913

Why is this change being made?

To start a WIP MR for all marketing operations handbook updates through MktgOps: 20200831 - 202000913.

List of changes (Please list high-level changes here so we can quickly know what changed in this MR):

• Fixed table of contents on main MOps page @sdaily
• Survey Marketo template @amy.waller https://gitlab.com/gitlab-com/marketing/marketing-operations/-/issues/3567
• Add use case content topics to PathFactory @sdaily
• Updated Zoominfo page to clarify limitations of number of exported leads via the native integration vs using the direct site login. @nlarue
• Add link to Cookiebot installation overview video with Brandon @sdaily
• Update PF content types @sdaily
• Document SFDC + Sigstr integration @sdaily
• Updated Drift page to include recent updates to the platform and reorganize sections @bethpeterson
• Updated LeanData page to better explain lead and account routing workflows @bethpeterson

Author Checklist

• Provided a concise title for the MR
• Added a description to this MR explaining the reasons for the proposed change, per [say-why-not-just-what][transparency]
• Assign this change to the correct DRI
  • If the DRI for the page/s being updated isn’t immediately clear, then assign it to your manager.
  • If your manager does not have merge rights, please ask someone to merge it AFTER it has been approved by your manager in [#mr-buddies][mr-buddies-slack].
  • If the changes relate to any part of the project other than updates to content and/or data files please make sure to ping @gl-static-site-editor in a comment for a review and merge. For example changes to .gitlab-ci.yml, JavaScript/CSS/Ruby code or the layout files.