Add default ZIM tags based on Kiwix convention

[benoit74]

Fix #76

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 33.33%. Comparing base (0119431) to head (726b7c0).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #83      +/-   ##
==========================================
+ Coverage   32.20%   33.33%   +1.12%     
==========================================
  Files          11       11              
  Lines         975      981       +6     
  Branches      132      133       +1     
==========================================
+ Hits          314      327      +13     
+ Misses        650      643       -7     
  Partials       11       11              

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