Remove stray space

README.md

@@ -9,7 +9,7 @@ Variables:
 
 **password_secret** Secret used for password encryption and salting.
 
-** root_password** Password for the graylog root/admin user.
+**root_password** Password for the graylog root/admin user.
 This is written to the graylog configuration file as a SHA256 hash.
 
 ## Example