Rewrite README with expanded developer docs (#414)

Update README.md to improve first-page experience

- Add Trust Wallet product introduction paragraph with link to trustwallet.com
- Restructure navigation into grouped sections: Build, List, Libraries, Tooling
- Add one-line descriptions under each section link
- Add missing Staking Validators entry

Author: curiouschonk

README.md

@@ -1,16 +1,53 @@
-# Trust Developer Documentation
-
-Welcome to the Trust Wallet developer documentation. Here you can find documentation on contributing to Trust Wallet as well as on using Trust Wallet libraries on your own projects.
-
-- [MCP Server](mcp/mcp.md)
-- [Claude Code Skills](claude-code-skills/claude-code-skills.md)
-- [Developing for Trust Wallet platform](develop-for-trust/develop-for-trust.md)
-  - [Browser Extension](develop-for-trust/browser-extension/browser-extension.md)
-  - [Mobile (WalletConnect)](develop-for-trust/mobile/mobile.md)
-  - [Deep Linking](develop-for-trust/deeplinking/deeplinking.md)
-- [Listing new dApps](dapps/listing-guide.md)
-- [Listing new assets](assets/new-asset.md)
-- [Wallet Core](wallet-core/wallet-core.md)
-- [Barz - Smart Wallet](barz-smart-wallet/barz-smart-wallet.md)
-
-Want to discuss more? join our [Trust Wallet Developers](https://discord.gg/trustwallet) on Discord.
+# Trust Wallet Developer Documentation
+
+[Trust Wallet](https://trustwallet.com) is a self-custody, multi-chain crypto wallet used by millions of people worldwide. It supports 100+ blockchains and millions of assets, giving users full control of their keys while providing a seamless experience for storing, sending, receiving, and swapping crypto — as well as connecting to dApps across web3.
+
+This documentation covers everything for developers: building on top of Trust Wallet, listing your project, and integrating Trust Wallet's open-source libraries.
+
+---
+
+## Build on Trust Wallet
+
+### [Developing for Trust Wallet](develop-for-trust/develop-for-trust.md)
+An introduction to web3 development with Trust Wallet. Covers the Provider API, WalletConnect, deep linking, and the browser extension.
+
+- [Browser Extension](develop-for-trust/browser-extension/browser-extension.md)
+- [Mobile (WalletConnect)](develop-for-trust/mobile/mobile.md)
+- [Deep Linking](develop-for-trust/deeplinking/deeplinking.md)
+
+### [Barz — Smart Wallet](barz-smart-wallet/barz-smart-wallet.md)
+Barz is Trust Wallet's ERC-4337 compatible smart contract wallet. Learn how to integrate it into your project for a modular, upgradeable smart wallet experience.
+
+---
+
+## List Your Project
+
+### [Listing a New dApp](dapps/listing-guide.md)
+Submit your dApp for listing in the Trust Wallet browser. Covers the listing requirements and submission process.
+
+### [Listing a New Asset](assets/new-asset.md)
+Add your token or coin to the Trust Wallet asset repository. Covers logo requirements, token information, and the pull request process.
+
+### [Staking Validators](assets/staking-validator.md)
+List your validator in the Trust Wallet app so users can discover and delegate to it directly.
+
+---
+
+## Libraries
+
+### [Wallet Core](wallet-core/wallet-core.md)
+Trust Wallet's open-source, cross-platform cryptographic library. Supports 130+ blockchains with native bindings for iOS (Swift), Android (Kotlin/Java), Go, WebAssembly, and more.
+
+---
+
+## Tooling
+
+### [MCP Server](mcp/mcp.md)
+Trust Wallet publishes a Model Context Protocol (MCP) server that gives AI coding assistants direct access to this documentation.
+
+### [Claude Code Skills](claude-code-skills/claude-code-skills.md)
+Domain-specific Claude Code skills for Trust Wallet libraries, enabling AI-assisted development with knowledge of Trust Wallet's APIs and conventions.
+
+---
+
+Have questions? Join the [Trust Wallet Developers](https://discord.gg/trustwallet) Discord.