Please see this post for links to the annual ADV amendment instructions as well as the link to submit your drafts for CS2 review prior to your filing (optional), and deadlines based on whether your firm does or does not have AUM.
For details, click here: https://community.cs2compliance.com/event/firms-that-do-have-aum-deadline-for-diy-cs2-review-ye2020-annual-adv-amendment-webform
https://community.cs2compliance.com/event/firms-that-do-have-aum-deadline-for-diy-cs2-review-ye2020-annual-adv-amendment-webform