JP-3172: Update data products docs

[hbushouse]

Resolves JP-3172

Closes #4447

This PR make updates to the data products docs to fix issues raised in #4447 and #4449

Checklist for maintainers

• added entry in CHANGES.rst within the relevant release section
• updated or added relevant tests
• updated relevant documentation
• added relevant milestone
• added relevant label(s)
• ran regression tests, post a link to the Jenkins job below.
  How to run regression tests on a PR
• Make sure the JIRA ticket is resolved properly

[tapastro]

LGTM

[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (6376c03) 77.52% compared to head (059a0d4) 77.52%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #7527   +/-   ##
=======================================
  Coverage   77.52%   77.52%           
=======================================
  Files         452      452           
  Lines       36232    36232           
=======================================
  Hits        28088    28088           
  Misses       8144     8144           

Flag	Coverage Δ		*Carryforward flag
nightly	77.53% <ø> (ø)		Carriedforward from 6376c03

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