Fix numbering issue

[jeloagnasin]

Checks

• I have read the contribution guidelines regarding Pull Requests here: https://git.io/JJ0Pg

Description

Fix issue when there's a non-<li> children in a <ol>. (#369)

[codecov-commenter]

Codecov Report

Merging #397 into master will decrease coverage by 0.30%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master     #397      +/-   ##
==========================================
- Coverage   58.13%   57.82%   -0.31%     
==========================================
  Files           6        6              
  Lines         375      377       +2     
  Branches      124      124              
==========================================
  Hits          218      218              
- Misses         71       73       +2     
  Partials       86       86              

Impacted Files	Coverage Δ
src/HTMLRenderers.js	32.00% <0.00%> (-1.34%)	⬇️

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[jsamr]

@jeloagnasin I think you wanted to refer to issue #396, didn't you? Well, it seems this bug was not really a bug. But if you can lay out what this PR "fixes", I'll be happy to help. You will need, as required by the guidelines, to implement tests. Feel free to ask anything in our #contributing Discord channel.

[jsamr]

I'm closing now, but feel free to comment and I'll reopen if deemed appropriate.