Add 1.27 rc0 documentation (#453)

Reviewed-on: https://gitea.com/gitea/docs/pulls/453
Reviewed-by: Zettat123 <39446+zettat123@noreply.gitea.com>

versioned_docs/version-1.27/contributing/contributing.md

@@ -0,0 +1,76 @@
+---
+slug: "contributing"
+sidebar_position: 1
+---
+
+# Contributing to Gitea
+
+Thank you for your interest in contributing to Gitea! This guide will help you understand how to contribute to the project effectively.
+
+## Getting Started
+
+Before you start contributing, please read our [Hacking on Gitea](../development/hacking-on-gitea) guide to set up your development environment.
+
+## Contribution Guidelines
+
+We have specific guidelines for different types of contributions:
+
+### Backend Development
+
+If you're working on backend code (Go), please follow our [Guidelines for Backend Development](./guidelines-backend). This includes:
+
+- Package design and dependencies
+- Database operations and migrations
+- Testing strategies
+- Code organization
+
+### Frontend Development
+
+For frontend contributions (JavaScript, CSS, Vue), refer to our [Guidelines for Frontend Development](./guidelines-frontend). This covers:
+
+- Framework usage (Vue3, Fomantic-UI)
+- Code style and best practices
+- Accessibility requirements
+- TypeScript usage
+
+### Refactoring
+
+When refactoring existing code, follow our [Guidelines for Refactoring](./guidelines-refactoring) to ensure:
+
+- Clear refactoring objectives
+- Proper review process
+- Maintaining backward compatibility
+- Incremental improvements
+
+### Localization
+
+To contribute translations or localization improvements, see our [Localization Guide](./localization) which explains:
+
+- How to contribute translations via Crowdin
+- Supported languages
+- Translation workflow
+
+## Code of Conduct
+
+Please be respectful and constructive in all interactions with the community. We are committed to providing a welcoming and inclusive environment for all contributors.
+
+## Getting Help
+
+If you need help with your contribution:
+
+- Join our [Discord](https://discord.gg/gitea) #Develop channel
+- Visit our [Forum](https://forum.gitea.com/)
+- Check existing [GitHub Issues](https://github.com/go-gitea/gitea/issues)
+
+## Submitting Your Contribution
+
+1. Fork the repository
+2. Create a feature branch
+3. Make your changes following the relevant guidelines
+4. Write tests for your changes
+5. Ensure all tests pass
+6. Submit a pull request
+
+For more details, see our [CONTRIBUTING.md](https://github.com/go-gitea/gitea/blob/main/CONTRIBUTING.md) in the main repository.
+
+Thank you for helping make Gitea better!