Add initial announcement of the Gothenburg user summit

The permalink is backdated to 27th February which is when Luca
initially announced the user summit on the mailing list.

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+---
+title: Gerrit User Summit 2019, 29-30 Aug in Gothenburg (Sweden)
+tags: news, summit, hackathon
+keywords: news, summit, hackathon
+permalink: 2019-02-27-user-summit-gothenburg.html
+summary: "The Gerrit Community, with the collaboration of Volvo Cars and GerritForge,
+is happy to announce the Gerrit User Summit & Hackathon 2019"
+hide_sidebar: true
+hide_navtoggle: true
+toc: true
+---
+
+## Intro
+The Gerrit Community, with the collaboration of Volvo Cars and GerritForge, is happy to
+announce the Gerrit User Summit & Hackathon 2019.
+
+For those who are not familiar with it, it is THE event of the year for everything related
+to Gerrit Code Review and the trunk-based development pipeline.
+
+Where: Volvo Cars HQ in Gothenburg (Sweden)
+When: 29-30th August 2019
+
+## The Event
+
+The event will start with a 5-days Hackathon 24-28th August reserved for the current Gerrit
+contributors and maintainers plus anyone that is willing to start contributing to the platform.
+It will then follow with a 2-days summit 29-30th August opened to anyone that is contributing,
+using or is planning to adopt Gerrit Code Review in their development process.
+
+## Registration
+
+Registration for Gerrit User Summit 2019 will be opened in a few weeks on
+[eventbrite.com](https://eventbrite.com). Keep watching the mailing list to secure your space
+as soon as the registration form is released.
+
+There are 30 seats available for the Hackathon (by invitation) and 70 seats available for the Summit.
+
+## About the summit
+
+The Gerrit User Summit is the place where all of the major Gerrit users annually meet and exchange
+experiences and practices that foster the community with new and useful ideas. Gerrit experts,
+continuous delivery thought leaders and companies at the User Summit would help to shape the
+future of Gerrit.
+
+You can participate actively and ask to talk about your story on adopting and using Gerrit in
+your organization.
+
+The Gerrit Call for Papers will be opened shortly and, if you are interested in speaking, you will
+be able to submit your talk proposal and have the entire community vote for it.
+
+Start booking the window in your calendar and keep an eye on the mailing list and on
+Twitter [@gerritreview](https://twitter.com/gerritreview) for any updates.
+
+Thanks again to Volvo Cars for making this happen and to GerritForge for contributing to the event.