Add Zuul presentation

Change-Id: I72a0fce3aa6aaa6281d2311537928161f8436f79

schedule-europe.md

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 | 12:45 | Lunch & Networking                                                                           |
 | 14:00 | [Labels & Prolog-less submit rules](sessions/labels-and-prolog-less-submit-rules.md)         |
 | 15:00 | Gerrit at Volvo Cars                                                                         |
-| 16:00 | Break & Networking                                                                           |
-| 16:30 | [Towards a lightning-fast Gerrit](sessions/performance.md)                                   |
-| 17:15 | Using Zuul CI with Gerrit                                                                    |
+| 15:45 | Break & Networking                                                                           |
+| 16:15 | [Towards a lightning-fast Gerrit](sessions/performance.md)                                   |
+| 17:00 | [Using Zuul CI with Gerrit](sessions/zuul.md)                                                |
 | 17:45 | End of Day 1                                                                                 |
 | 19:00 | Dinner - Celebrations for Gerrit v3.0                                                        |
 

sessions/zuul.md

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+# Zuul: A project gating system for Gerrit and others
+
+Zuul is a project gating system, which is like a CI or CD system, but
+is focused on ensuring that changes are tested correctly before they
+are merged.
+
+Zuul was originally written for Gerrit and integrates very well with
+it.  It also supports other systems (including GitHub) and allows
+interaction between multiple systems.  Using Zuul's cross-repo
+dependency feature, developers can seamlessly test a change to a
+project in Gerrit that depends on an unmerged change to a project in
+GitHub.
+
+This presentation will provide an overview of Zuul, discuss how it
+integrates with Gerrit, and how it can be used to promote
+collaboration in enterprise environments.
+
+*[Monty Taylor, Red Hat](../speakers.md#mordred)*

speakers.md

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 Patrick's main focus is performance and stability. He makes the latency graphs
 go up and the user satisfaction graphs go down. Or was it the other way around?
+
+### Monty Taylor - Red Hat {#mordred}
+
+[LinkedIn](https://www.linkedin.com/in/montytaylor)
+
+Monty currently leads the team that works on the Zuul project for
+CI/CD in Red Hat's CTO Office. He's the founder, core member and past
+PTL of the OpenStack Infra team which runs CI and developer tooling
+for OpenStack. He's a member of the OpenStack Foundation Board of
+Directors, a Python Fellow and past member the OpenStack Technical
+Committee. Monty is the PTL of the openstacksdk project and is the
+maintainer of the Ansible modules for consuming OpenStack. Before his
+OpenStack days he was a core developer on Drizzle and was a Senior
+Consultant for MySQL, Inc.