Add freebsd-office-hours-2021-03-31 event

This is rescheduled freebsd-office-hours-2021-03-17

Approved by:	carlavilla (implicitly)

website/data/en/events/events2021.toml

@@ -28,3 +28,12 @@ startDate = "2021-03-24"
 endDate = "2021-03-24"
 site = "live.FreeBSD.org"
 description = "On March 24th at 21:00 UTC we will hold a \"FreeBSD Office Hours\", an interactive online event where users, contributors, and developers can ask questions or to offer comments. The topic will be \"Bhyve Q&amp;A\", hosted by Peter Grehan. For more information, please see the <a href=\"https://wiki.freebsd.org/OfficeHours\">Office Hours</a> page on the FreeBSD wiki."
+
+[[events]]
+id = "freebsd-office-hours-2021-03-31"
+name = "FreeBSD Office Hours"
+url = "https://live.freebsd.org/FreeBSD/officehours/"
+startDate = "2021-03-31"
+endDate = "2021-03-31"
+site = "live.FreeBSD.org"
+description = "On March 31st at 18:00 UTC we will hold a \"FreeBSD Office Hours\", an interactive online event where users, contributors, and developers can ask questions or to offer comments. The topic will be \"Survey Results\", hosted by Sean Chittenden. For more information, please see the <a href=\"https://wiki.freebsd.org/OfficeHours\">Office Hours</a> page on the FreeBSD wiki."