RHDHPAI-716: Changing default date value (redhat-developer#1021)

* Changing default date value

* John's comment

Author: pabel-rh

modules/observe/adoption-insights/proc-setting-duration-of-data-metrics.adoc

@@ -2,7 +2,7 @@
 [id="proc-setting-duration-of-data-metrics_{context}"]
 = Setting the duration of data metrics
 
-You can set the data metrics duration using any of the time ranges, such as *All time* (default), *today*, *last week*, *last month*, *last year*, or you can select the range from the calendar.
+You can set the data metrics duration using any of the time ranges, such as *Last 28 days* (default), *Today*, *Last week*, *Last month*, *Last year*, or *Date range...*.
 
 .Procedure