docs(commit): add multiline option `questions` content table

[ArneSchwerdt]

Description

I suggest to mention the multline support for input question in the documentation since it is already supported and a multiline description in the body is essential for good commits

Checklist

• [ ] Add test cases to all the changes you introduce
• [ ] Run ./scripts/format and ./scripts/test locally to ensure this change passes linter check and test
• [ ] Test the changes on the local machine manually
• [x] Update the documentation for the changes

Expected behavior

Question type = input and option multiline = True, multiline input is possible

Steps to Test This Pull Request

• created .cz.yaml and added the option multiline: true to the question type: text and type: input
• in https://github.com/commitizen-tools/commitizen/issues/264#issuecomment-1620234279 marcosdotme tested it in toml and reported it works

Additional context

Closes: https://github.com/commitizen-tools/commitizen/issues/264

[codecov[bot]]

Codecov Report

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

Project coverage is 97.63%. Comparing base (120d514) to head (eea0eb4). Report is 468 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1265      +/-   ##
==========================================
+ Coverage   97.33%   97.63%   +0.29%     
==========================================
  Files          42       55      +13     
  Lines        2104     2575     +471     
==========================================
+ Hits         2048     2514     +466     
- Misses         56       61       +5     

Flag	Coverage Δ
unittests	97.63% <ø> (+0.29%)	:arrow_up:

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