This is "Module 5 – Create Workflow in Microsoft Flow", which is part of a series on "Create Tasks in Microsoft Planner using Google Home".

21. From within Flow, click on Templates and type in Wunderlist

22. Click on the option that say "When a new task is create in Wunderlist cop to Planner"

23. Click on Continue

24. Configure the flow as follows, then click on Save

You may find this of value: 

Microsoft Project Schedule Templates