Update _index.md: more accurate handout times

_index.md

@@ -2,6 +2,7 @@
 title: Home
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 ## card10 handout: Card10 handout is closed. Handout opens Day2 - 18:00
+still blue vouchers only, white vouchers likely not before day3
 ## Helpdesk Day2 from ca. 13:00
 ## current firmware version: CCCauliflower (as of day2-00:30)
 It is very easy to [update your card10 firmware](/en/firmwareupdate) with just a USB-C cable. The update instructions