Update SDR Onboarding Page

Why is this change being made?

This page is out of date and the information is no longer used/relevant as the SDR team has moved away from an SDR playbook to align with sales using the Command of the Message framework. We are updating it to be a more up to date onboarding page for the SDR team.

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Does this MR meet the acceptance criteria?

Yes

Conformity

• Added description to this MR explaining the reasons for the proposed change, per say-why-not-just-what