docs(config): Added example with xtitle

README.md

@@ -811,6 +811,21 @@ is not fully functional yet. If you notice any other anomalies, please [create a
   scroll:down = echo scroll down %counter%
   ~~~
 
+##### Useful example
+
+  Show title of the currently focused window.
+
+  ~~~ ini
+  [module/xtitle]
+  type = custom/script
+  exec = xtitle
+  interval = 0.25
+
+  format = <output>
+  format-background = #999
+  format-foreground = #000
+  format-padding = 4
+  ~~~
 
 ### Module `custom/text`
   ~~~ ini