fix(core): markdown renderer misc issues

[neilime]

No description provided.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 92.45283% with 32 lines in your changes missing coverage. Please review.
✅ Project coverage is 86.05%. Comparing base (a42ec49) to head (92f74e8).

Files with missing lines	Patch %	Lines
...src/formatter/markdown/markdown-table.generator.ts	93.10%	28 Missing ⚠️
packages/core/src/container.ts	0.00%	3 Missing ⚠️
packages/core/src/index.ts	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #97      +/-   ##
==========================================
+ Coverage   85.43%   86.05%   +0.62%     
==========================================
  Files          69       70       +1     
  Lines        3777     4096     +319     
  Branches      805      914     +109     
==========================================
+ Hits         3227     3525     +298     
- Misses        541      562      +21     
  Partials        9        9              

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