Remove codespell rare dictionary from website spellcheck

[JaviChulvi]

Summary

The daily Website links and spellcheck workflow reports valid LVIS class names as spelling errors:

• manger → manager
• trough → through

Both are valid nouns in the LVIS class label manger/trough (an animal-feeding container) and should not be "corrected".

Root cause

The Check spelling step in .github/workflows/links.yml runs codespell with --builtin clear,rare,informal,en-GB_to_en-US. Codespell's rare dictionary explicitly maps both words as likely typos:

dictionary_rare.txt :: manger->manager
dictionary_rare.txt :: trough->through

Verified these two entries exist only in dictionary_rare.txt, not in clear, informal, or en-GB_to_en-US, so removing rare fixes them at the source with no reappearance from another dictionary.

Change

-            --builtin clear,rare,informal,en-GB_to_en-US \
+            --builtin clear,informal,en-GB_to_en-US \

This fixes the source rather than adding individual --ignore-words-list exceptions, keeping the high-confidence clear, informal, and en-GB_to_en-US checks that are appropriate for a Slack-paging daily check.

Trade-off

Dropping rare also drops its coverage of other genuine-but-uncommon typos. That is the deliberate trade: rare is opt-in precisely because it assumes uncommon-but-valid words are probably typos — the wrong premise for scanning a real technical website full of model names, dataset labels, and ML jargon. For a daily check that pages a human via Slack, noise reduction is the right call.

Notes

• .github/workflows/links.yml line 145 is the only rare usage in this repo. The format.yml spellcheck delegates to Ultralytics Actions (spelling: true); the same fix there is tracked in Remove codespell rare dictionary to avoid modifying valid words actions#823.

Closes #340

Ref: Slack thread https://ultralytics-work.slack.com/archives/C01EDRWJ95W/p1784360628239059

🛠️ PR Summary

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🌟 Summary

Removes the Codespell rare dictionary from the website spellcheck workflow. 🔤

📊 Key Changes

• Updates .github/workflows/links.yml to stop using the rare Codespell dictionary.
• Retains the clear, informal, and en-GB_to_en-US dictionaries and existing ignore rules.

🎯 Purpose & Impact

• Reduces false-positive spelling warnings caused by uncommon or domain-specific words.
• Makes website spellcheck results more focused and maintainable without changing documentation content. ✅

[UltralyticsAssistant]

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[UltralyticsAssistant]

🔍 PR Review

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Clean, minimal workflow-only change. Removing rare from the Codespell built-in dictionaries preserves the existing spellcheck invocation and ignore rules while narrowing the dictionary set as intended.