Add welcoming organization profile for Waccamaw community

[Copilot]

Creates a public-facing GitHub organization profile inviting users to borrow resources and contribute to build a "learn to code with your tribe" community in Aynor, SC.

Changes

• README.md: Complete rewrite transforming generic placeholder into community profile with:
  • Clear invitation to use existing repositories
  • Explicit encouragement for contributions at all skill levels
  • Step-by-step onboarding for first-time contributors
  • Community values emphasizing collaborative learning and inclusivity
  • Southern-themed welcoming tone with local identity

The profile positions the organization as a beginner-friendly space for learning and experimentation while acknowledging current limited repository count.

Original prompt

Let's make a friendly and accessible public github profile for the waccamaw of aynor, sc. I want to invite people to borrow and use what we have (not that there is much, but it could grow) and especially want to encourage people to jump in and contribute - learn to code with your tribe, sort of deal

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