Complement README

Author: Noah Lee

README.md

@@ -44,13 +44,13 @@ Day of week    Yes          0-6 or SUN-SAT    * / , -
 The asterisk indicates that the cron expression matches for all values of the field. E.g., using an asterisk in the 4th field (month) indicates every month. 
 
 ### Slash ( / )
-Slashes describe increments of ranges. For example `3-59/15` in the minute field indicate the third minute of the hour and every 15 minutes thereafter. The form `*/...` is equivalent to the form "first-last/...", that is, an increment over the largest possible range of the field.
+Slashes describe increments of ranges. For example `3-59/15` in the minute field indicate the third minute of the hour and every 15 minutes thereafter (i.e. `3`, `18`, `33`, and `48`). The form `*/...` is equivalent to the form "first-last/...", that is, an increment over the largest possible range of the field.
 
 ### Comma ( , )
 Commas are used to separate items of a list. For example, using `MON,WED,FRI` in the 5th field (day of week) means Mondays, Wednesdays and Fridays.
 
 ### Hyphen ( - )
-Hyphens define ranges. For example, 2000-2010 indicates every year between 2000 and 2010 AD, inclusive.
+Hyphens define ranges. For example, 0-6 indicates every hours between 0 and 6 AM, inclusive.
 
 ## Details