Update README.md

README.md

-# TC Lawful Interface (LI) - Trial repository
+# TC Lawful Interception (LI)
 
-Trial repository for the ETSI Lawful Interception Technical Committee.
+Repository for the ETSI Technical Committee on Lawful Interception.
 
 For more information, visit https://www.etsi.org/committee/li or contact `espsupport` at `etsi` dot `org`.