created custom-connector.md docs in recipes folder

docs/recipes/custom-connector.md

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+## Introduction
+
+Custom wallet connectors allow users to connect their preferred wallets to your decentralized application (dApp). This provides flexibility and improves the user experience by giving users options beyond popular default wallets like MetaMask.
+
+
+## Install Dependencies
+First, install the necessary packages:
+
+```
+npm install @scaffold-stark/stark-burner
+```
+OR
+
+```
+yarn add @scaffold-stark/stark-burner
+```
+
+## Handle Errors
+Implement proper error handling throughout the connector:
+```
+handleError(error) {
+  console.error('Error in StarknetCustomConnector:', error);
+  // Implement appropriate error handling logic
+}
+```
+
+## Integrate with User Interface
+Create a React component to integrate the custom connector with the user interface:
+
+```
+import React, { useState } from 'react';
+import { BurnerConnector } from '@scaffold-stark/stark-burner';
+
+const WalletConnect = () => {
+  const [connected, setConnected] = useState(false);
+  const [address, setAddress] = useState('');
+
+  handleError(error) {
+  console.error('Error in StarknetCustomConnector:', error);
+  // Implement appropriate error handling logic
+ }
+
+  const connectWallet = async () => {
+    try {
+      const result = await BurnerConnector.connect();
+      setConnected(true);
+      setAddress(result.address);
+    } catch (error) {
+      handleError(error);
+    }
+  };
+
+  const disconnectWallet = async () => {
+    await BurnerConnector.disconnect();
+    setConnected(false);
+    setAddress('');
+  };
+
+  return (
+    <div>
+      {!connected ? (
+        <button onClick={connectWallet}>Connect Wallet</button>
+      ) : (
+        <div>
+          <p>Connected Address: {address}</p>
+          <button onClick={disconnectWallet}>Disconnect</button>
+        </div>
+      )}
+    </div>
+  );
+};
+
+export default WalletConnect;
+```
+
+## Summary
+This custom Starknet wallet connector provides a flexible and extensible solution for connecting various wallets to a dApp built on the Starknet blockchain. It includes:
+
+- Support for injected wallets and web wallets
+- Error handling for robust connectivity
+- Customizable connector options
+- Integration with React components for user interaction
+
+Best practices followed include:
+- Modular design allowing for easy extension
+- Proper error handling and logging
+- Separation of concerns between connector logic and UI
+- Flexibility to support multiple wallet types
+
+