[IMP] PoS_loyalty: - improving description type of rewards

invoicing :  - set a customer with barcode

point_of_sale/advanced/loyalty.rst

@@ -54,11 +54,20 @@ Your new rule is now created and rewards can be added by clicking on
 .. image:: media/loyalty06.png
     :align: center
 
-Three types of reward can be given : **Resale**, **Discount** or **Gift**.
+Three types of reward can be given: 
 
+-   **Resale**: convert your points into money. Set a product that represents the value of 1 point.
+.. image:: media/loyalty14.png
+    :align: center
+-   **Discount**: give a discount for an amount of points. Set a product with a price of ``0 €`` and without any taxes.
+.. image:: media/loyalty13.png
+    :align: center
+-   **Gift**: give a gift for an amount of points
 .. image:: media/loyalty07.png
     :align: center
 
+
+
 Applying your loyalty program to a point of sale
 ================================================
 

point_of_sale/shop/invoice.rst

@@ -25,6 +25,9 @@ directly set the correct **Quantity/Weight** by typing it on the keyboard.
 Add a customer
 ==============
 
+By selecting in the customer list
+---------------------------------
+
 On the main view, click on **Customer** (above **Payment**):
 
 .. image:: media/invoice03.png
@@ -45,6 +48,36 @@ clicking on the icon.
     For more explanation about adding a new customer. Please read the
     document :doc:`../advanced/register`.
 
+By using a barcode for customer
+-------------------------------
+
+On the main view, click on **Customer** (above **Payment**):
+
+.. image:: media/invoice03.png
+    :align: center
+
+Select a customer and click on the pencil to edit.
+
+.. image:: media/invoice09.png
+    :align: center
+
+Set a the barcode for customer by scanning it.
+
+.. image:: media/invoice10.png
+    :align: center
+
+Save modifications and now when you scan the customer's barcode, he is assigned
+to the order
+
+.. note::
+    Be careful with the **Barcode Nomenclature**. By default, customers' barcodes 
+    have to begin with 042. To check the default barcode nomenclature, go to
+    :menuselection:`Point of Sale --> Configuration --> Barcode Nomenclatures`.
+
+    .. image:: media/invoice11.png
+        :align: center
+
+
 Payment and invoicing
 =====================