Added a warning about the required console access to install the module.

Author: roadster31

README.md

@@ -8,7 +8,9 @@
 
 ### Composer
 
-Add it in your main thelia composer.json file
+> **WARNING** : A console access is required to update dependencies. If you don't have a console access, please get the latest 2.x version of the module here : https://github.com/thelia-modules/Paypal/tree/2.x
+
+To install the module with Composer, open a console, navigate to the Thelia diorectory and type the following command to add the dependency to Thelia composer.json file.
 
 ```
 composer require thelia/paypal-module:~3.0.0
@@ -51,4 +53,4 @@ composer require thelia/paypal-module:~3.0.0
 
 #### Express checkout
 ![alt classic paypal payment](https://github.com/thelia-modules/Paypal/blob/master/images/payment_express_checkout.png?raw=true)
-- This method allow the customer to proceed the payment directly from the cart from a PayPal inContext popup.
+- This method allow the customer to proceed the payment directly from the cart from a PayPal inContext popup.