docs: ✏️ update README

Author: streamich

src/README.md

@@ -1,4 +1,30 @@
 # Reactive-RPC
 
-Implements [Reactive-RPC](https://onp4.com/@vadim/p/qgzwgi42cz) protocol.
+Implements [Reactive-RPC](https://onp4.com/@vadim/p/qgzwgi42cz) protocol. A fast
+and type-safe HTTP and WebSocket server and client.
 
+
+## Features
+
+- Very fast.
+- Type-safe. Write types using JSON Type, TypeScript types are automatically
+  inferred on the server and client.
+- Supports Reactive-RPC protocol.
+- Supports JSON-RPC 2.0 protocol.
+- Supports binary data.
+- Supports HTTP/1.1 and WebSocket.
+- Ships with a client and server
+- Specify RPC methods using JSON Type.
+- Supports TLS with automatic certificate reloading.
+
+
+## Installation
+
+```bash
+npm install reactive-rpc rxjs
+```
+
+
+## Usage
+
+See `/src/__demos__` for examples.