misc: examples/kemi - small typo in lua example

misc/examples/kemi/kamailio-basic-kemi-lua.lua

@@ -238,7 +238,7 @@ function ksr_route_location()
 end
 
 
--- IP authorization and user uthentication
+-- IP authorization and user authentication
 function ksr_route_auth()
 	if not KSR.auth then
 		return 1;