Step 1: In your WordPress Admin, visit Appearance > Menu
Step 2: Make sure you are editing the right menu, or select the right one from the dropdown, and click Select
Step 3: In Pages, click View All, and select the Team page
Step 4: click Add to menu
Once done you can drag the item in the menu at the point you want
Step 5: click "Save Menu"
How to link specific member categories in the Menu
Step 1: Go to Appearance > Menu and make sure you are editing the right menu
Step 2: click Screen Options and enable Member Type
Step 3: find the Member Type tab, and add the type you want to the menu
Step 4: you can now drag and drop the new item in the desided position within the menu.
Step 5: Save the menu