FI-3276: Fix AuthInfo Code Documentation

[vanessuniq]

Summary

The code documentation for AuthInfo was not properly formatted. Updated the doc to ensure proper rendering

Testing Guidance

Generate the doc locally with ./bin/docs and ensure proper rendering.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.04%. Comparing base (dce1b1d) to head (871aec9).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #543   +/-   ##
=======================================
  Coverage   84.04%   84.04%           
=======================================
  Files         261      261           
  Lines       11385    11385           
  Branches     1253     1253           
=======================================
  Hits         9568     9568           
  Misses       1807     1807           
  Partials       10       10           

Flag	Coverage Δ
backend	92.16% <ø> (ø)
frontend	79.32% <ø> (ø)

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