Corrected collection name.

examples/timer/repeating_timer/repeating_timer.collection

@@ -1,4 +1,4 @@
-name: "progress"
+name: "repeating_timer"
 scale_along_z: 0
 embedded_instances {
   id: "go"

examples/timer/repeating_timer/repeating_timer.md

@@ -9,4 +9,6 @@ The example shows how to use Defold built-in timer and uses two indicators:
 1. A numerical time text with seconds counter created using a text node
 2. A circular time indicator created using a pie node
 
+The timer trigers updates of those two indicators every 1s to form a counter.
+
 ![repeating_timer](repeating_timer.png)