docs: update README.md

[uniqueg]

• add badges/shields for Zenodo and F1000Research documents describing ZARP-cli
• fix broken link
• update code repository link with docs link for Mamba
• fix typo
• perform minor style changes

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (ed964e9) to head (3682ef7).
Report is 1 commits behind head on dev.

Additional details and impacted files

@@            Coverage Diff            @@
##               dev       #92   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           24        24           
  Lines         1263      1263           
=========================================
  Hits          1263      1263           

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