Continue to work on your Literature Review (what you started in Milestone #6).
If you have finished the body sections of your review, this draft should include a sample of your Introduction and Purpose and Conclusion sections.
If you are not yet done with the body, this milestone should build on the body before you can move onto the Introduction and Purpose and Conclusion sections.
Again, this is considered a draft of your literature review. Therefore, it does not need to be complete. It does, however, need to show growth since Milestone #6.