docs(retry-plugin): fix typo and clarify default retryDelay

[haesoo-y]

Description

• corrects a typo in the documentation (script -> fetch).
• updates a section heading from Chinese to English (类型说明 -> Description).
• clarifies the default retryDelay of 1000ms.

Related Issue

Types of changes

• Docs change / refactoring / dependency upgrade
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)

Checklist

• I have added tests to cover my changes.
• All new and existing tests passed.
• I have updated the documentation.

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⚠️ No Changeset found

Latest commit: c98f5c7

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