tree 991505538dda32ebd1c7146e8083183190d69c84
parent bd6a1da0eeada33e2d4b91206ff33cabe58ff09b
author Luca Milanesio <luca.milanesio@gmail.com> 1560864864 +0100
committer Luca Milanesio <luca.milanesio@gmail.com> 1560871495 +0000

Add Gerrit User Summit USA 2019 post

The Gerrit User Summit 2019 has now two dates and locations:
- Summer 2019 (Gothenburg - Sweden)
- Autumn 2019 (Sunnyvale - California)

Advertise the new dates to the home page and gives the basic
information needed for the people to sign-up to the event.

Change-Id: I348dd26b495c8ea47aecd923f1c56c6a67ed5af0