Better wording for the comments in config.yaml

Co-authored-by: Samantaz Fox <[email protected]>

config/config.example.yml

@@ -174,15 +174,17 @@ https_only: false
 # use_innertube_for_captions: false
 
 ##
-## Send Google session informations. This gives more identifiable information to Google.
+## Send Google session informations. This is useful when Invidious is blocked
+## by the message "This helps protect our community."
+## See https://github.com/iv-org/invidious/issues/4734.
 ##
-## Useful when Invidious is blocked by the message "This helps protect our community." See https://github.com/iv-org/invidious/issues/4734
+## Warning: These strings gives much more identifiable information to Google!
 ##
-## Accepted values: true, false
-## Default: false
+## Accepted values: String
+## Default: <none>
 ##
-# po_token: XXX
-# visitor_data: XXX
+# po_token: ""
+# visitor_data: ""
 
 # -----------------------------
 #  Logging