update overview data figure

[elray1]

Looking at the figure here: https://hubdocs.readthedocs.io/en/latest/user-guide/tasks.html#task-id-variables

• Update "truth" to "target"
• Once we've finalized how we're thinking about target data, update. It's looking likely that we will ask the hub to provide two versions of target data, long form and with target values. We might remove the "calculate" box between those.
• Maybe add a color code for "hubverse provides" and use that color for "calculate scores"?
• It may or may not be helpful to add a more complete view of the setup and other steps including, e.g. validating submissions and building ensembles?

[nickreich]

@elray1 do you have the original source for this figure?

[elray1]

it's defined here: https://lucid.app/lucidchart/637de8d8-ba72-4182-9eb9-a11066a266b6/edit?invitationId=inv_d79c320f-6d72-466a-b188-e0d6c3256547#

[mmkerr]

Shall I go ahead and tackle these first 3 points?