Add Patrick to speaker list and Q&A

Change-Id: Ia14a0c857a181bf6d04c96f6a038344e721b1391
diff --git a/sessions/maintainers-qa.md b/sessions/maintainers-qa.md
index ad6ee64..96d8bc9 100644
--- a/sessions/maintainers-qa.md
+++ b/sessions/maintainers-qa.md
@@ -7,3 +7,4 @@
 * *[Edwin Kempin, Google](../speakers.md#ekempin)*
 * *[Ben Rohlfs, Google](../speakers.md#brohlfs)*
 * *[Thomas Draebing, SAP](../speakers.md#tdraebing)*
+* *[Patrick Hiesel, Google](../speakers.md#phiesel)*
diff --git a/speakers.md b/speakers.md
index 95bec32..03b19cd 100644
--- a/speakers.md
+++ b/speakers.md
@@ -118,3 +118,10 @@
 and later became project manager for the SCM architecture transformation and
 enhancement of the company.
 
+### Patrick Hiesel - Google {#phiesel}
+
+Patrick joined Google and the Gerrit project in 2016, working primarily on the
+backend. Since then, he has worked on making Gerrit faster, and more stable as
+well as different features, including (most recently) Submit Requirements.
+
+He is a Gerrit maintainer and a member of the Engineering Steering Committee.