docs : include system design (#8) 🗒️

README.md

@@ -17,3 +17,47 @@
     <img src="https://img.shields.io/badge/Solana-lightblue?logo=solana" alt="Solana">
     <img src="https://img.shields.io/badge/1-contributors-green" alt="contributors">
 </p>
+
+<p align="center">
+    <a href="#-about">About</a> •
+    <a href="#-system-design">System Design and Architecture</a> •
+    <a href="#-features">Features</a> •
+    <a href="#-folder-structure">Folder Structure</a> •
+    <a href="#-api-documentation">Documentation And Testing</a> •
+    <a href="#-contributing">Contributing</a> •
+    <a href="#-team">Team</a>
+</p>
+
+## 📝 About
+
+Exploring the development of a crowdfunding smart contract on the Solana blockchain, leveraging the Rust programming language and the Anchor framework. Crowdfunding has emerged as a popular method for raising funds for various projects, initiatives, and charitable causes, and blockchain technology introduces new possibilities for enhancing transparency, security, and efficiency in this process.
+
+User Interface
+┌───────────────┐ ┌───────────────┐ ┌───────────────┐
+│ Frontend │ │ Frontend │ │ Frontend │
+└───────┬───────┘ └───────┬───────┘ └───────┬───────┘
+│ │ │
+▼ ▼ ▼
+┌───────────────┐ ┌───────────────┐ ┌───────────────┐
+│ User Wallet │ │ User Wallet │ │ User Wallet │
+└───────────────┘ └───────────────┘ └───────────────┘
+│ │ │
+└───────────────┬──────────┼───────────────┬──────────┼───────────────┐
+▼ │ ▼ │ │
+┌───────────────┐ │ ┌───────────────┐ │ Smart │
+│ Solana RPC │ │ │ Solana RPC │ │ Contracts │
+└───────────────┘ │ └───────────────┘ │ │
+│ │ │ │ │
+└──────────┼──────────────┼──────────┼───────────────┘
+▼ ▼ │
+┌─────────────────────────┐ │
+│ Anchor Lang Program │◀──────┘
+└─────────────────────────┘
+│ │ │
+│ │ │
+┌────────────┘ │ └────────────┐
+│ │ │
+┌────────────────┐┌────────────────┐┌────────────────┐
+│ Create ││ Withdraw ││ Donate │
+│ Function ││ Function ││ Function │
+└────────────────┘└────────────────┘└────────────────┘