Updates to Storm data mod docs

[therealsilence]

• Clarify use of "try" operator (+?) in edit operations, including with tag add operations (VTX-1786)
• General editorial pass (update examples for current tag and model elements, overall revise/update/cleanup)
• Add reference headers to "views & layers" doc for easier cross-referencing

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (cee6a41) 97.61% compared to head (b33e909) 97.51%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3482      +/-   ##
==========================================
- Coverage   97.61%   97.51%   -0.10%     
==========================================
  Files         234      234              
  Lines       48789    48789              
==========================================
- Hits        47623    47576      -47     
- Misses       1166     1213      +47     

Flag	Coverage Δ
linux	97.51% <ø> (-0.01%)	⬇️
linux_replay	?

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