docs: update for ipc/cli, tidy a bit

docs/modules/Script.md

@@ -1,6 +1,9 @@
 Executes a script and shows the result of `stdout` on a label.
 Pango markup is supported.
 
+If you want to be able to embed multiple scripts and/or variables, prefer the [label](label) module.
+For more advanced use-cases, use [custom](custom).
+
 ## Configuration
 
 > Type: `script`