Minor tweak

Author: javiereguiluz

README.md

@@ -38,7 +38,7 @@ $ cd my_project/
 $ symfony serve
 ```
 
-And access the application in your browser at the given URL (<https://localhost:8000> by default).
+Then access the application in your browser at the given URL (<https://localhost:8000> by default).
 
 If you don't have the Symfony binary installed, run `php -S localhost:8000 -t public/`
 to use the built-in PHP web server or [configure a web server][3] like Nginx or