linux hex calendars 2018 for us (week starts on sunday)

8 lat temu · e03b5ec358
--- a/calendars/2018/us/hexadecimal-cron-us-black.png
+++ b/calendars/2018/us/hexadecimal-cron-us-black.png
--- a/calendars/2018/us/hexadecimal-cron-us-white.png
+++ b/calendars/2018/us/hexadecimal-cron-us-white.png