docs: update README.md example (#110)

Author: Offirmo

README.md

@@ -8,13 +8,16 @@ var Gauge = require("gauge")
 
 var gauge = new Gauge()
 
-gauge.show("test", 0.20)
-
-gauge.pulse("this")
-
-gauge.hide()
+gauge.show("working…", 0)
+setTimeout(() => { gauge.pulse(); gauge.show("working…", 0.25) }, 500)
+setTimeout(() => { gauge.pulse(); gauge.show("working…", 0.50) }, 1000)
+setTimeout(() => { gauge.pulse(); gauge.show("working…", 0.75) }, 1500)
+setTimeout(() => { gauge.pulse(); gauge.show("working…", 0.99) }, 2000)
+setTimeout(() => gauge.hide(), 2300)
 ```
 
+See also the [demos](demo.js):
+
 ![](gauge-demo.gif)