feat: improved markdown output

[lucassabreu]

closes #135

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 59.43%. Comparing base (a292ee7) to head (729fc5d).

Files	Patch %	Lines
pkg/output/time-entry/default.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #271      +/-   ##
==========================================
+ Coverage   59.00%   59.43%   +0.42%     
==========================================
  Files          70       70              
  Lines        4432     4427       -5     
==========================================
+ Hits         2615     2631      +16     
+ Misses       1721     1698      -23     
- Partials       96       98       +2     

Flag	Coverage Δ
unittests	59.43% <0.00%> (+0.42%)	⬆️

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