Add bilingual organization profile template

[Copilot]

Creates a GitHub organization profile README template for KaiYuanShe in profile/README.md.

Changes

• Structure: Bilingual (Chinese/English) sections covering organization history, mission, activities, participation methods, and contact information
• Sections: About, Mission & Vision, Core Activities (conferences, education, knowledge sharing, project incubation, international cooperation), Join Us, Contact, Community Guidelines, Achievements
• Formatting: Badges for website/social links, emojis for visual hierarchy, centered header/footer elements

The template follows GitHub's organization profile conventions and will display on the organization's main page.

Original prompt

帮我创建一个开源社组织的介绍模版，Markdown格式，可以参考官网：https://kaiyuanshe.cn/

---

💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.