Touch up of spatial release article

[ivirshup]

• Added links to relevant tiledbsoma and spatialdata doc pages
• Fixed outdated image documentation

This looks like:

Where the bolded code titles link to the tiledbsoma documentation.

• .levels() is not currently documented, but was on the original set of attributes to document. I will check in with tiledb on this

[MaximilianLombardo]

LGTM - thinking we should specify the specific Slide Seq version?

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.42%. Comparing base (50fea93) to head (eb34026).
Report is 1 commits behind head on main.

Additional details and impacted files

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##             main    #1345   +/-   ##
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  Coverage   91.42%   91.42%           
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  Files          82       82           
  Lines        6487     6487           
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  Hits         5931     5931           
  Misses        556      556           

Flag	Coverage Δ
unittests	91.42% <ø> (ø)

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