MOps Handbook Updates 20210201 - 20210214 pt3

Why is this change being made?

1. Additional scoring for PF content based on engagement time @amy.waller @sdaily https://gitlab.com/gitlab-com/marketing/marketing-operations/-/issues/4245
2. Sigstr - add Google Chrome install instructions @sdaily
3. Sigstr - include business value reasons for Terminus Chrome extension @sdaily
4. Remove Cookiebot from tech stack list @sdaily
5. Rename Sigstr directory @sdaily
6. Sigstr - update all references to Terminus email experiences, fix anchor links for new directory name @sdaily
7. Update tech stack link for Sigstr to reflect new directory name @sdaily
8. Added scoring for FMB @amy.waller @sdaily
9. Updated field marketing handbook about Alyce auto-sequencing @jburton
10. PathFactory - update rules of engagement @sdaily

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
• Assign this change to the correct DRI
  • If the DRI for the page/s being updated isn’t immediately clear, then assign it to one of the people listed in the "Maintained by" section in on the page being edited.
  • 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.
  • 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. (this requirement has been removed pending identification of a new DRI for the handbook)