fix: place order example in readme is fixed

Author: vividvilla

README.md

@@ -15,43 +15,43 @@ Download `kiteconnect.php` and `include()` it in your application.
 ## Usage
 ```php
 <?php
-	include dirname(__FILE__)."/kiteconnect.php";
-
-	// Initialise.
-	$kite = new KiteConnect("your_api_key");
-
-	// Assuming you have obtained the `request_token`
-	// after the auth flow redirect by redirecting the
-	// user to $kite->login_url()
-	try {
-		$user = $kite->generateSession("request_token_obtained", "your_api_secret");
-
-		echo "Authentication successful. \n";
-		print_r($user);
-
-		$kite->setAccessToken($user->access_token);
-	} catch(Exception $e) {
-		echo "Authentication failed: ".$e->getMessage();
-		throw $e;
-	}
-
-	echo $user->user_id." has logged in";
-
-	// Get the list of positions.
-	echo "Positions: \n";
-	print_r($kite->getPositions());
-
-	// Place order.
-	$order_id = $kite->placeOrder("regular", [
-		"tradingsymbol" => "INFY",
-		"exchange" => "NSE",
-		"quantity" => 1,
-		"transaction_type" => "BUY",
-		"order_type" => "MARKET",
-		"product" => "NRML"
-	])["order_id"];
-
-	echo "Order id is ".$order_id;
+    include dirname(__FILE__)."/kiteconnect.php";
+
+    // Initialise.
+    $kite = new KiteConnect("your_api_key");
+
+    // Assuming you have obtained the `request_token`
+    // after the auth flow redirect by redirecting the
+    // user to $kite->login_url()
+    try {
+        $user = $kite->generateSession("request_token_obtained", "your_api_secret");
+
+        echo "Authentication successful. \n";
+        print_r($user);
+
+        $kite->setAccessToken($user->access_token);
+    } catch(Exception $e) {
+        echo "Authentication failed: ".$e->getMessage();
+        throw $e;
+    }
+
+    echo $user->user_id." has logged in";
+
+    // Get the list of positions.
+    echo "Positions: \n";
+    print_r($kite->getPositions());
+
+    // Place order.
+    $o = $kite->placeOrder("regular", [
+        "tradingsymbol" => "INFY",
+        "exchange" => "NSE",
+        "quantity" => 1,
+        "transaction_type" => "BUY",
+        "order_type" => "MARKET",
+        "product" => "NRML"
+    ]);
+
+    echo "Order id is ".$o->order_id;
 ?>
 ```