Rephrase the summit overview

Address Matthias comments on Change-Id: I3505d86ba9 by rephrasing
the overview of the summit and the explanation why this year
we have two locations and two dates.

Change-Id: I04e4c820627fe18bb789b66c44b2e223291f6af3
diff --git a/index.md b/index.md
index 73ff049..ffd8f6c 100644
--- a/index.md
+++ b/index.md
@@ -6,10 +6,10 @@
 THE event of the year for everything related to Gerrit Code Review and the
 trunk-based development pipeline.
 
-## One Summit, two events
+## Summit in Europe and USA
 
-The Gerrit User Summit & Hackathon is composed of **two different events and locations**,
-one in Sweden (Europe) and another in California (USA), to allow most of the community around
+The Gerrit User Summit & Hackathon 2019 will be held in Gothenburg (Sweden) and
+in Sunnyvale (California, USA), to allow most of the community around
 the globe to attend and share their experience and ideas.
 
 The first part of the event is a 5-days Hackathon reserved for the current