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doc/functionalities.md

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+# Functionalities
+
+---
+
+There are many shipping providers and each has its own API format you might want to use to export shipping data and request the pickup. 
+This plugin allows you to write simple API calls and configuration form for specific shipping provider. 
+
+After installation, user is now able to create gateway for a specific shipping provider (of course the right configuration form must be firstly written). 
+
+<div align="center">
+    <img src="./images/shipping_gateways.png"/>
+</div>
+
+Once the shipping method and shipping gateway for the shipping provider are created, customer can use this shipping method during a checkout. 
+When the order is placed, user can now go to the 'Export shipping data' section from Sylius Admin Panel and export chosen shipments.
+
+<div align="center">
+    <img src="./images/shipping_export.png"/>
+</div>