Updates and changes to list upload page

Why is this change being made?

Some information was outdated and needed to resemble other areas of the handbook.

How will this merge request impact page speed?

It should not change speed.

Will this slow the page down if merged?

No

Does this MR meet the acceptance criteria?

Yes

Assign to DRI

• Did you assign this change to the correct DRI of the page or information you are changing?

Conformity

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