modify the description for config.example.yaml about invidious companion

Author: unixfox

config/config.example.yml

@@ -55,15 +55,14 @@ db:
 #signature_server:
 
 ##
-## Path to the Invidious companion.
-## An external program for loading the video streams from YouTube servers.
+## Invidious companion is an external program
+## for loading the video streams from YouTube servers.
 ##
 ## When this setting is commented out, Invidious companion is not used.
 ##
-## When this setting is configured and "external_port" is used then
-## you need to configure Invidious companion routes into your reverse proxy.
-## If "external_port" is not configured then Invidious will proxy the requests
+## When this setting is configured, then Invidious will proxy the requests
 ## to Invidious companion.
+## Or randomly choose one if multiple Invidious companion are configured.
 ##
 ## Accepted values: "http(s)://<IP-HOSTNAME>:<Port>"
 ## Default: <none>