Add KUnit Testing Strategies talk video to press page.

Signed-off-by: David Gow <davidgow@google.com>
Change-Id: I2ce24515b8f024fc5d4120e807c8ed19c748ba21
diff --git a/press.rst b/press.rst
index 281d723..16d078c 100644
--- a/press.rst
+++ b/press.rst
@@ -13,6 +13,8 @@
    <https://linuxplumbersconf.org/event/7/contributions/747/>`_
  - `KUnit: Past, Present, and Future - linux.conf.au 2021
    <https://linux.conf.au/schedule/presentation/98/>`_
+ - `KUnit Testing Stragegies — Linux Foundation Mentorship Series
+   <https://linuxfoundation.org/webinars/kunit-testing-strategies/>`_
 
 Articles about KUnit
 ====================