Missing ' before LaravelMsg91 aliases

Author: shahbaz17

README.md

@@ -35,7 +35,7 @@ RobinCSamuel\LaravelMsg91\LaravelMsg91ServiceProvider::class
 Next, locate the `aliases` key and add the following line:
 
 ```php
-LaravelMsg91' => RobinCSamuel\LaravelMsg91\Facades\LaravelMsg91::class,
+'LaravelMsg91' => RobinCSamuel\LaravelMsg91\Facades\LaravelMsg91::class,
 ```
 Put the credentials & preferences in ENV with the keys `MSG91_KEY`, `MSG91_SENDER_ID`, `MSG91_ROUTE`, `MSG91_COUNTRY`. If you wan't to customize this, publish the default configuration which will create a config file  `config/msg91.php`.