docs: clean up references in proxy plugins

docs/networking/proxies/caddy.md

@@ -103,7 +103,7 @@ You can use these modifiers as follows:
 dokku caddy:logs --tail --num 10
 ```
 
-The above command will show logs continually from the vector container, with an initial history of 10 log lines
+The above command will show logs continually from the caddy container, with an initial history of 10 log lines
 
 ### Changing the Caddy log level