[ADD] sales: How to create my first quotation?

https://docs.google.com/document/d/14Ne7siIRykq-GvrkIyUxeUkWPi_xJO7lwbR5lstL_P4/edit?ts=560d5830#

sales/quotation/setup/first_quote.rst

@@ -1,3 +1,130 @@
 =================================
 How to create my first quotation?
-=================================
+=================================
+
+Overview
+========
+
+Quotations are documents sent to customers to offer an estimated cost
+for a particular set of goods or services. The customer can accept the
+quotation, in which case the seller will have to issue a sales order, or
+refuse it.
+
+For example, my company sells electronic products and my client
+Agrolait showed interest in buying ``3 iPads`` to facilitate their
+operations. I would like to send them a quotation for those iPads with
+a sales price of ``320 USD`` by iPad with a ``5%`` discount.
+
+This section will show you how to proceed.
+
+Configuration
+=============
+
+Install the Sales Management module
+-----------------------------------
+
+In order to be able to issue your first quotation, you'll need to
+install the **Sales Management** module from the app module in the Odoo
+backend.
+
+.. image:: media/first_quote01.png
+    :align: center
+
+Allow discounts on sales order line
+-----------------------------------
+
+Allowing discounts on quotations is a common sales practice to improve
+the chances to convert the prospect into a client.
+
+In our example, we wanted to grant ``Agrolait`` with a ``5%`` discount on the
+sale price. To enable the feature, go into the **Sales** application, select
+:menuselection:`Configuration --> Settings` and, under **Quotations and Sales**, tick
+**Allow discounts on sales order line** (see picture below) and apply your
+changes.
+
+.. image:: media/first_quote02.png
+    :align: center
+
+Create your quotation
+=====================
+
+To create your first quotation, click on :menuselection:`Sales --> Quotations` and
+click on **Create**. Then, complete your quotation as follows:
+
+Customer and Products
+---------------------
+
+The basic elements to add to any quotation are the customer (the person
+you will send your quotation to) and the products you want to sell. From
+the quotation view, choose the prospect from the **Customer** drop-down list
+and under **Order Lines**, click on **Add an item** and select your product.
+Do not forget to manually add the number of items under **Ordered
+Quantity** and the discount if applicable.
+
+.. image:: media/first_quote03.png
+    :align: center
+
+If you don't have any customer or product recorded on your Odoo
+environment yet, you can create them on the fly directly from your
+quotations :
+
+-   To add a new customer, click on the **Customer** drop-down menu and click
+    on **Create and edit**. In this new window, you will be able to
+    record all the customer details, such as the address, website,
+    phone number and person of contact.
+
+-   To add a new product, under **Order line**, click on add an item and on
+    **Create and Edit** from the drop-down list. You will be able to
+    record your product information (product type, cost, sale price,
+    invoicing policy, etc.) along with a picture.
+
+Taxes
+-----
+
+To parameter taxes, simply go on the taxes section of the product line
+and click on **Create and Edit**. Fill in the details (for example if you
+are subject to a ``21%`` taxe on your sales, simply fill in the right amount
+in percentage) and save.
+
+.. image:: media/first_quote04.png
+    :align: center
+
+Terms and conditions
+--------------------
+
+You can select the expiration date of your quotation and add your
+company's terms and conditions directly in your quotation (see picture
+below).
+
+.. image:: media/first_quote05.png
+    :align: center
+
+Preview and send quotation
+==========================
+
+If you want to see what your quotation looks like before sending it,
+click on the **Print** button (upper left corner). It will give you a
+printable PDF version with all your quotation details.
+
+.. image:: media/first_quote06.png
+    :align: center
+
+.. tip::
+    Update your company's details (address, website, logo, etc) appearing 
+    on your quotation from the the **Settings** menu on the app switcher, and 
+    on click on the link
+    :menuselection:`Settings --> General settings --> Configure company data`.
+
+Click on **Send by email** to automatically send an email to your customer
+with the quotation as an attachment. You can adjust the email body
+before sending it and even save it as a template if you wish to reuse
+it.
+
+.. image:: media/first_quote07.png
+    :align: center
+
+.. seealso::
+    * :doc:`recurring`
+    * :doc:`../online/creation`
+    * :doc:`optional`
+    * :doc:`terms_conditions`