Fix when we show next month meeting

If the current month meeting has started 1h ago or more (and not is
going to start in less that one hour), it is over, and we wnat to move
to the next month.

contributing/index.md

@@ -36,7 +36,7 @@ dayOffset = 2 - nextMeeting.day();
 if (dayOffset < 0) dayOffset += 7;
 nextMeeting.add(dayOffset, 'days');
 
-if (nextMeeting.isBefore(moment.tz(eventTimeZone).add(1, 'hour'))) {
+if (nextMeeting.isBefore(moment.tz(eventTimeZone).subtract(1, 'hour'))) {
   nextMeeting = moment.tz(eventTimeZone).startOf('month').add(1, 'month').add(1, 'week').hours(16).minutes(30);
   dayOffset = 2 - nextMeeting.day();
   if (dayOffset < 0) dayOffset += 7;