docs: fix typo (occured->occurred (x2))

[ltsyk]

Summary

Fixes spelling/typo issues found in this project's documentation.

Details: Fix documentation typos: occured->occurred (x2); begining->beginning (x3)

Files:

• help.md

Documentation-only; no functional code changes.

Summary by CodeRabbit

• ドキュメント
  • ヘルプの目次と見出しのスペルを修正しました。
  • 関連するアンカー名を更新しました。
  • バージョン履歴の誤字（occurred／occured）を修正しました。

[coderabbitai]

Caution

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📝 Walkthrough

Walkthrough

help.mdの目次、見出し、アンカー名、バージョン履歴にある英語のスペルミスを修正した。

Changes

ヘルプ文書の表記修正

Layer / File(s)	Summary
見出しと履歴表記の修正 help.md	目次と「The beginning of development」見出しの表記およびアンカー名を修正し、バージョン履歴の「occurred」表記を更新した。

Estimated code review effort: 1 (Trivial) | ~2 minutes

Poem

うさぎがぴょんと、誤字を発見
beginningへ、道を整え
occurredも正しく跳ねる
目次の矢印、ぴたりと結び
にんじん片手に、修正完了 🐇

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	docsの誤字修正という変更内容に合っており、主要な修正点の一部も示しています。
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@help.md`:
- Around line 124-125: Update the Markdown heading beginning with “The beginning
of development” by adding a space after the leading # marker, preserving the
heading text and anchor unchanged.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: 30307c2f-6eb4-4a9c-a424-238574b3ccbc

📥 Commits

Reviewing files that changed from the base of the PR and between 9e9128f and 065e968.

📒 Files selected for processing (1)

• help.md