Move internals to separate directory + Improve README (#274)

Author: vjik

README.md

@@ -1,33 +1,60 @@
-# The definitive guide to Yii 3.0
+<p align="center">
+    <a href="https://github.com/yiisoft" target="_blank">
+        <img src="https://yiisoft.github.io/docs/images/yii_logo.svg" height="100px" alt="Yii">
+    </a>
+    <h1 align="center">Yii3 Documentation</h1>
+    <br>
+</p>
+
+This repository contains the official documentation for Yii3 Framework, a high-performance PHP framework for building 
+modern web applications.
+
+## Documentation Sections
+
+### The Definitive Guide
+
+The comprehensive guide covering all aspects of the framework.
 
 - [English](guide/en)
+- [Español (Spanish)](guide/es)
+- [Bahasa Indonesia](guide/id)
+- [Русский (Russian)](guide/ru)
+- [简体中文 (Simplified Chinese)](guide/zh-CN)
 
-# Yii3 community cookbook
+### Community Cookbook
+
+A collection of community-contributed tips, tricks, and solutions for common Yii development tasks.
 
 - [English](cookbook/en)
+- [Русский (Russian)](cookbook/ru)
+
+### Internals
+
+Documentation for developers contributing to the Yii framework itself, including guidelines, workflows, and best
+practices.
+
+- [Internals Documentation](internals)
+
+## Contributing
+
+We welcome contributions to improve the documentation, including translations.
+Please see the [Documentation Guidelines](internals/014-docs.md) for information on how to contribute.
+
+## License
+
+The documentation is released under the terms of the BSD License.
+Please see [`LICENSE`](./LICENSE.md) for more information.
+
+Maintained by [Yii Software](https://www.yiiframework.com/).
+
+## Support the project
+
+[![Open Collective](https://img.shields.io/badge/Open%20Collective-sponsor-7eadf1?logo=open%20collective&logoColor=7eadf1&labelColor=555555)](https://opencollective.com/yiisoft)
+
+## Follow updates
 
-# Internals
-
-- [000 — Packages](000-packages.md)
-- [001 — Yii goals and values](001-yii-values.md)
-- [002 — Issue workflow](002-issue-workflow.md)
-- [003 — Roadmap](003-roadmap.md)
-- [004 — Namespaces](004-namespaces.md)
-- [005 — Development tool](005-development-tool.md)
-- [006 — Git commit messages](006-git-commit-messages.md)
-- [007 — Exceptions](007-exceptions.md)
-- [008 — Interfaces](008-interfaces.md)
-- [009 — Design decisions](009-design-decisions.md)
-- [010 — Code style](010-code-style.md)
-- [011 — Error correction](011-error-correction.md)
-- [012 — Tests](012-tests.md)
-- [013 — Code review](013-code-review.md)
-- [014 — Documentation](014-docs.md)
-- [015 — PhpStorm metadata and attributes](015-phpstorm.md)
-- [016 — Security workflow](016-security-workflow.md)
-- [017 — Tags](017-tags.md)
-- [018 — Widgets](018-widgets.md)
-- [019 — View code style](019-view-code-style.md)
-- [020 — Package release](020-package-release.md)
-- [021 — Changelog and upgrade](021-changelog-upgrade.md)
-- [022 — Config groups](022-config-groups.md)
+[![Official website](https://img.shields.io/badge/Powered_by-Yii_Framework-green.svg?style=flat)](https://www.yiiframework.com/)
+[![Twitter](https://img.shields.io/badge/twitter-follow-1DA1F2?logo=twitter&logoColor=1DA1F2&labelColor=555555?style=flat)](https://twitter.com/yiiframework)
+[![Telegram](https://img.shields.io/badge/telegram-join-1DA1F2?style=flat&logo=telegram)](https://t.me/yii3en)
+[![Facebook](https://img.shields.io/badge/facebook-join-1DA1F2?style=flat&logo=facebook&logoColor=ffffff)](https://www.facebook.com/groups/yiitalk)
+[![Slack](https://img.shields.io/badge/slack-join-1DA1F2?style=flat&logo=slack)](https://yiiframework.com/go/slack)