Update ModelArray roxygen

[araikes]

Some of the roxygen comments don't render correctly so this should hopefully fix this.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 96.00000% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 89.66%. Comparing base (1de8eed) to head (69107ee).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
R/ModelArray_Constructor.R	96.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #118      +/-   ##
==========================================
+ Coverage   89.51%   89.66%   +0.14%     
==========================================
  Files           6        6              
  Lines        1717     1973     +256     
==========================================
+ Hits         1537     1769     +232     
- Misses        180      204      +24     

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