Stylistic fixes

[hmdne]

This corrects #106

Metanorma PR checklist

• Breaking changes (list related PRs)
• Documentation update required (create task for this)
• External dependency introduced (documentation update need)
• Gem with native library introduced

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.34%. Comparing base (a32cdeb) to head (8c84b92).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #111   +/-   ##
=======================================
  Coverage   98.34%   98.34%           
=======================================
  Files          46       46           
  Lines        1327     1327           
=======================================
  Hits         1305     1305           
  Misses         22       22           

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