[ADD] inventory: How to setup Odoo inventory?

https://docs.google.com/document/d/138HzxvyMYSQHgD3NI5A2pxnaX7gqaTwin5eew5z3C1c/edit

inventory/overview/settings.rst

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+============================
+How to setup Odoo inventory?
+============================
+
+The Odoo Inventory application has an implementation guide that you
+should follow to configure it. It's a step-by-step manual with links to
+the different screens you will need.
+
+Once you have installed the **Inventory** application, you should click on
+the top-right progressbar to get access to the implementation guide.
+
+.. image:: media/setup02.png
+   :align: center
+
+The implementation guide will help you through the following steps:
+
+1. Setup your warehouse
+
+2. Import your vendors
+
+3. Import your products
+
+4. Make the initial inventory
+
+5. Configure your sales and purchase flows
+
+6. Set-up replenishment mechanisms
+
+7. Configure advanced features like package, traceability, routes and
+   inventory valuation.
+
+.. image:: media/setup02.png
+   :align: center
+
+.. note::
+
+	If you want to set up operations with barcode scanner in your
+	warehouse, you should install the **Barcode** application that will add
+	features on top of the inventory application. The barcode application
+	will guide you to configure and use your scanner optimally.

inventory/overview/setup.rst

@@ -0,0 +1,40 @@
+============================
+How to setup Odoo inventory?
+============================
+
+The Odoo Inventory application has an implementation guide that you
+should follow to configure it. It's a step-by-step manual with links to
+the different screens you will need.
+
+Once you have installed the **Inventory** application, you should click on
+the top-right progressbar to get access to the implementation guide.
+
+.. image:: media/setup01.png
+   :align: center
+
+The implementation guide will help you through the following steps:
+
+1. Setup your warehouse
+
+2. Import your vendors
+
+3. Import your products
+
+4. Make the initial inventory
+
+5. Configure your sales and purchase flows
+
+6. Set-up replenishment mechanisms
+
+7. Configure advanced features like package, traceability, routes and
+   inventory valuation.
+
+.. image:: media/setup02.png
+   :align: center
+
+.. note::
+
+	If you want to set up operations with barcode scanner in your
+	warehouse, you should install the **Barcode** application that will add
+	features on top of the inventory application. The barcode application
+	will guide you to configure and use your scanner optimally.