remove duplicate ralph entry, mark Configuration Management Database as related to IT Asset Management

README.md

@@ -187,11 +187,12 @@
 
 ## Configuration Management Database
 
-*Configuration management database (CMDB) software.*
+Configuration management database (CMDB) software.
+
+_See also: [IT Asset Management]([Ralph](#it-asset-management))_
 
 * [i-doit](http://www.i-doit.org/) - IT Documentation and CMDB.
 * [iTop](http://www.combodo.com/itop-193) - Complete ITIL web based service management tool.
-* [Ralph](https://github.com/allegro/ralph) - Asset management, DCIM and CMDB system for large Data Centers as well as smaller LAN networks.
 * [Clusto](https://github.com/clusto/clusto) - Helps you keep track of your inventory, where it is, how it's connected, and provides an abstracted interface for interacting with the elements of the infrastructure.
 * [Collins](http://tumblr.github.io/collins/) - At Tumblr, it's the infrastructure source of truth and knowledge.
 * [netbox](https://github.com/digitalocean/netbox) - IP address management (IPAM) and data center infrastructure management (DCIM) tool