Improved functionality description

Author: Luis Gaspar Schroeder

arm-ttk/README.md

@@ -26,7 +26,7 @@ You can also skip tests any tests:
     Test-AzTemplate -TemplatePath $thePathToYourTemplate -Skip apiVersions-Should-Be-Recent 
     # This will exclude the tests indicated by the -Skip parameter from the test run and results    
 
-You can also change the output format to JSON:
+You can also change the output format to get detailed test result descriptions in JSON:
 
     Test-AzTemplate -TemplatePath $thePathToYourTemplate | Format-Json
     # This will output the test results from Test-AzTemplate to the console in JSON format