update readme

Author: Daniil Gazizullin

README.md

@@ -1,6 +1,13 @@
-# ToyLang -> WASM Compiler
+# ToyLang
 
-## Prereqs
+![academic project](https://img.shields.io/badge/academic%20project-3DB420)
+![academic project](https://img.shields.io/badge/source%20only-545454)
+
+> Handmade WASM compiler for the invented object-oriented language built with C# 
+
+![Toylang](https://github.com/user-attachments/assets/cda4f960-4d65-4b02-aef5-02df52d242a6)
+
+## Prerequisites
 
 * .NET 9 SDK
 * Node 18+ + Pnpm