Add Cogent's story

Author: lspgn

README.md

@@ -46,8 +46,16 @@ towards it's Global IP Network (AS 2914). More information is available [here](h
 _GTT deployed GoRTR along with OctoRPKI. The setup currently provides 400+ RTR sessions to their routers for filtering
 RPKI invalids._
 
+</br>
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+<img align="left" src="docs/images/cogent.png" alt="Cogent" width="150px"/>
+
+_Cogent deployed GoRTR and OctoRPKI at the end of May 2020. 8 validators feed approximately 2500 routers._
+
 </br></br>
 
+Router vendors also used this software to develop their implementations.
+
 _Do you use this tool at scale? Let us know!_