Propose talk on Gerrit for smooth migration from SVN to Git

Change-Id: I76bb97df64e3b26eaf1216afd4f76cb01cf9f1cb
diff --git a/schedule.md b/schedule.md
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 | 10:30 | [Wrestling large repos with JGit an Gerrit](sessions/wrestling-large-repos.md)
 | 11:15 | __Talk available__
 | 12:00 | Lunch & Networking
-| 14:00 | __Talk available__
+| 14:00 | [Gerrit for smoothly switching from SVN to Git](sessions/svn-to-git.md)
 | 14:45 | __Talk available__
 | 15:30 | Break & Networking
 | 16:00 | [Using Gerrit with Zuul](sessions/gerrit-and-zuul.md)
diff --git a/sessions/svn-to-git.md b/sessions/svn-to-git.md
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+# Gerrit for smoothly switching from a Subversion poly-repo to a Git mono-repo
+
+Many corporate environments still use Subversion (SVN) for version
+control. Switching to Git can be a disruptive step that's often
+postponed.
+
+In this session, an approach will be presented that has been taken for
+switching a SVN-based development environment to a Git/Gerrit workflow
+in a less disruptive and flexible way. The approach consists of
+
+1. migrating a large number of interconnected SVN repositories to a
+   Git mono-repo, and
+
+2. establishing a birectional hot-sync between Git and SVN, allowing
+   to concurrently use both Git and SVN.
+
+The implemented hot-sync allows to flexibly switch to Git, and the
+change-based Gerrit workflow was an enabler for it.
+
+The presentation will cover key concepts of the migration; it also
+provides a summary of the modifications to Gerrit and the hooks plugin
+for supporting the hot-sync setup.
+
+*[Alexander Ost, Freelance Consultant](../speakers.md#aost)*
diff --git a/speakers.md b/speakers.md
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 Gerrit for development teams within SAP. He is actively contributing to Gerrit
 since 2018 and has started the [k8s-gerrit](https://gerrit-review.googlesource.com/admin/repos/k8s-gerrit,general)
 project.
+
+### Alexander Ost - Freelance Consultant {#aost}
+
+[LinkedIn](https://www.linkedin.com/in/alexander--ost/)
+
+Alexander has been working as a CI/SCM/DevOps consultant since
+2004. He has been working with Gerrit for various companies, and he
+has obtained experience in using, customizing and troubleshooting
+Gerrit from several large-scale projects.