Improve API documentation

[staadecker]

• Fix the public API page not displaying
• Add the option to comment in posts
• Standardize printing of Constraint with Expression
• Document the configuration options (closes Document Config options in API reference. #129)

[github-actions]

Lines Of Code

Language	Files	Lines	Code	Comments	Blanks	Complexity	Bytes
HTML	4 (+2)	77 (+46)	69 (+38)	2 (+2)	6 (+6)	0	3K (+1.9K)
JSON	2 (+1)	16 (+6)	16 (+6)	0	0	0	297B (+107B)
JavaScript	1 (+1)	26 (+26)	20 (+20)	0	6 (+6)	4 (+4)	643B (+643B)
Markdown	25 (+1)	734 (+2)	477 (+2)	0	257	0	28.5K (+22B)
Python	40 (+2)	6358 (+258)	5515 (+240)	367 (+2)	476 (+16)	215 (+4)	208.3K (+7.9K)
YAML	15	853 (+22)	634 (+20)	157	62 (+2)	0	26.7K (+581B)
gitignore	1	17 (+1)	17 (+1)	0	0	0	174B (+26B)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.77%. Comparing base (242b14b) to head (79bb1bd).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #149      +/-   ##
==========================================
+ Coverage   96.73%   96.77%   +0.03%     
==========================================
  Files           9        9              
  Lines        1257     1271      +14     
==========================================
+ Hits         1216     1230      +14     
  Misses         41       41              

Flag	Coverage Δ
smart-tests	96.77% <100.00%> (+0.03%)	⬆️

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