Post-merger: Documentation fixes

[hmdne]

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

[hmdne]

Ref: #51

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 96.67%. Comparing base (bf24f07) to head (defb04a). Report is 1 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #57 +/- ## ======================================= Coverage 96.67% 96.67% ======================================= Files 42 42 Lines 1054 1054 ======================================= Hits 1019 1019 Misses 35 35 ```

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