What would you like to be added:
several documentation files use the incorrect term Duel instead of Dual, which needs to be changed:

• README.md#L43
• .github/ISSUE_TEMPLATE/bug-report.md#L22
• .github/ISSUE_TEMPLATE/question.md#L20
• docs/en/kmesh_support.md#L7
• docs/en/kmesh_support.md#L9
• docs/en/kmesh_support.md#L18

Why is this needed:
the current use of Duel is misleading as it should instead be Dual