Propose lightning talk on git-repo-metrics

Change-Id: Iea0d089f5ef0535441d9d131aaa44674938dbade

schedule.md

diff --git a/schedule.md b/schedule.md
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+++ b/schedule.md
@@ -70,7 +70,8 @@
 | 10:15 | __Talk available__
 | 11:00 | __Talk available__
 | 12:00 | Lunch& Networking
-| 14:00 | __Lightning talks (6x 10 mins)__
+| 14:00 | [Keeping an eye on your repository metrics](sessions/git-repo-metrics.md)
+| 14:10 | __Lightning talks (5x 10 mins)__
 | 15:00 | Break & Networking
 | 15:30 | Final retrospective and proposals
 | 16:30 | Conference wrap-up and Closing Keynote

sessions/git-repo-metrics.md

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+# Keeping an eye on your repository size
+
+Maintaining a monorepo comes with its challanges, one of which
+is monitoring the evolution of the repository.
+
+Fabio will talk about a [new plugin](https://gerrit.googlesource.com/plugins/git-repo-metrics)
+to systematically collect metrics about a git repository.
+This is crucial in particular when dealing with a monorepo.
+The new metrics allow, for example, planning of GC cycles,
+alerting when a GC is not effective or help with the capacity
+planning of the hardware.
+
+*[Fabio Ponciroli, GerritForge](../speakers.md#fponciroli)*

speakers.md

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 hacker he gets to write elegant code and then try to make it work in the
 real world.  He started [Acme Gating](https://acmegating.com/) to provide
 enterprise Zuul support and services.
+
+### Fabio Ponciroli - GerritForge {#fponciroli}
+
+[LinkedIn](https://uk.linkedin.com/in/fponciroli/)
+
+Fabio is a Senior Software Engineer at GerritForge, where he contributes to the
+OpenSource Gerrit Code Review project.
+He has been involved since the beginning in the design and development of Gerrit
+[DevOps analytics](https://gerrit.googlesource.com/plugins/analytics/)
+tools, [multi-site](https://gerrit.googlesource.com/plugins/multi-site/) plugin
+and many other.
+He has also created the [Gatling protocol manager for Git](https://github.com/GerritForge/gatling-git)
+which has finally provided a real E2E test suite for the validation of
+the Gerrit Code Review releases.
+He has extensive experience in working on backend systems, on-premise and
+cloud-based, with different programming languages, such as Scala, Java, NodeJS
+and related ecosystems.