Options: Add --format=mrkdwn option, improving Slack messages

[amotl]

About

Apparently, Slack may need special treatment for Markdown formatting? You can enable it going forward by using the --format=mrkdwn option.

References

• Slack: Special message formatting #15

[codecov]

Codecov Report

Attention: Patch coverage is 87.50000% with 4 lines in your changes missing coverage. Please review.

Project coverage is 71.71%. Comparing base (d131cde) to head (3cdc5e2).
Report is 70 commits behind head on main.

Files with missing lines	Patch %	Lines
src/rapporto/github/cli.py	81.25%	3 Missing ⚠️
src/rapporto/util.py	75.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #24      +/-   ##
==========================================
+ Coverage   71.59%   71.71%   +0.11%     
==========================================
  Files          12       12              
  Lines         676      693      +17     
==========================================
+ Hits          484      497      +13     
- Misses        192      196       +4     

Flag	Coverage Δ
unittests	71.71% <87.50%> (+0.11%)	⬆️

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