Emphasize tinyurl.com/gitsummit2020logistics at top of page

In case Jitsi Meet is down and an attendee is panicking, let's make it
very easy for them to see the current status and get help.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Change-Id: Iac1a067aa33210009e44d51adaa288647376122b
diff --git a/index.md b/index.md
index dd4a15c..0dd9db1 100644
--- a/index.md
+++ b/index.md
@@ -3,6 +3,9 @@
 Monday, September 14th 16:00-19:30 UTC (9am-12:30pm PDT) \
 Tuesday, September 15th 17:00-21:00 UTC (10am-2pm PDT)
+[Notes and logistics for
 ## Purpose
 This summit is part of a broader effort to make the Git version