Update README.md

Author: tacman

README.md

@@ -10,9 +10,9 @@
 ## Installation
 
 ```bash
-$ composer require league/glide-symfony
+composer require league/glide-symfony
 ```
 
 ## Documentation
 
-Full documentation can be found at [glide.thephpleague.com](http://glide.thephpleague.com).
+Full documentation can be found at [glide.thephpleague.com](http://glide.thephpleague.com).