Update README.md

README.md

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 ## Scope
 
-Intelligent resource placement module for
-5GCity distributed cloud and radio platform.
+Intelligent resource placement module for 5GCity distributed cloud and radio platform.
+
+*The main goal of the algorith is to take into consideration the network topology and the access points locations in determining the best option for placing the VNFs that compose a Network Service.* 
+
+## Configuration
+
+1) Device (Network) graph - a description of the available nodes (data-center, edge) and the interconnections between them
+2) Available resources per device - CPU, Memory, Storage
+3) Connection links capacity
+
+## Input
+
+Network Service (NS) placement request
+- NS description (VNFs, resource requirements)
+- NS user gateway - the end node where the NS user is connected 
+
+  *In 5GCity, we can assume that end users of a NS are the SCs and the WiFi APs and the NS gateway is the edge or DC node to which they have a direct connection*
+
+## Output
+
+The output of the module is one or a group of devices where the NS should be placed.
+
+
+
+