docs: clarify funding status

[nijel]

This is mostly funded by Weblate, but we want to get more projects involved.

[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-10-05T13:44:41.622301Z	6406cf6	PR opened
🔒 Security Review	✅ Completed 2026-10-05T13:44:51.663188Z	6406cf6	PR opened

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.12%. Comparing base (8c5359c) to head (6406cf6).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2058   +/-   ##
=======================================
  Coverage   96.12%   96.12%           
=======================================
  Files         365      365           
  Lines       19883    19883           
  Branches     1111     1111           
=======================================
  Hits        19113    19113           
  Misses        569      569           
  Partials      201      201           

Flag	Coverage Δ
unittests	96.12% <ø> (ø)

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