[ADD] inventory: How to organize a cross-dock in your warehouse?

https://docs.google.com/document/d/18LLqEQaiMXRtwe85Xe20S3nb8MIUhnpwpW290YZhaCI/edit

inventory/routes/concepts.rst

@@ -6,6 +6,7 @@ Concepts
    :titlesonly:
    :glob:
 
+   concepts/use_routes
    concepts/procurement_rule
    concepts/push_rule
    concepts/inter_warehouse

inventory/routes/concepts/cross_dock.rst

@@ -1,3 +1,96 @@
 ===============================================
 How to organize a cross-dock in your warehouse?
-===============================================
+===============================================
+
+Cross dock area is temporarily area where we are not storing any product
+instead just managing place according to delivery for further customer.
+This will save lot of time for inter warehouse transfer and storing
+process. We are managing our products with docking area where product
+directly place from supplier location and transfer this to gate pass for
+customer delivery.
+
+.. image:: media/cross01.jpg
+   :align: center
+
+.. note::
+
+   For more information on how to organise your warehouse, read
+   `What is cross docking and is it for me? <https://www.odoo.com/blog/business-hacks-1/post/what-is-cross-docking-and-is-it-for-me-270>`_
+
+Configuration
+=============
+
+Warehouse and routes
+--------------------
+
+In the **Inventory** module, open :menuselection:`Configuration --> Settings -->
+Location & Warehouse`, then in **Routes**, select **Advanced routing of
+products using rules**, then click on **Apply**.
+
+.. image:: media/cross02.png
+   :align: center
+
+Open :menuselection:`Configuration --> Warehouse Management --> Warehouses`,
+then open the warehouse you want to cross-dock from and click on **Edit**.
+
+In the **Warehouse Configuration** tab, select:
+
+- **Incoming Shipments**: Unload in input location then go to stock (2
+  steps)
+
+- **Outgoing Shipments**: Ship directly from stock (Ship only)
+
+then click on **Save**.
+
+.. image:: media/cross03.png
+   :align: center
+
+This steps has generated a cross-docking route that you can see in
+:menuselection:`Inventory --> Configurations --> Routes --> Routes`.
+
+Cross Docking Route
+-------------------
+
+We will use the route **Buy** for first part of the flow and create a route for
+the remaining part:
+
+.. image:: media/cross04.png
+   :align: center
+
+Each of the procurement rule will now be configured. Cross Dock location is
+created as an internal physical location.
+
+.. figure:: media/cross05.png
+   :figclass: figure
+   :align: center
+
+   :menuselection:`Input --> Cross Dock`
+
+.. figure:: media/cross06.png
+   :figclass: figure
+   :align: center
+
+   :menuselection:`Cross Dock --> Output`
+
+.. figure:: media/cross07.png
+   :figclass: figure
+   :align: center
+
+   :menuselection:`Output --> Customer`
+
+Product with cross dock
+-----------------------
+
+We have created the Vegetable Fennel product and assigned the routes created above
+as well as the **Buy** route.
+
+We have also specified a supplier and a minimum order rule which is needed for
+replenishment of a stockable product.
+
+.. image:: media/cross08.png
+   :align: center
+
+.. seealso::
+
+   * :doc:`use_routes`
+   * :doc:`../../management/incoming/two_steps`

inventory/routes/concepts/use_routes.rst

@@ -0,0 +1,3 @@
+==================
+How to use routes?
+==================