website: Added presentation video to gem5art blog

Change-Id: I4d962410c64e91417a9c3f1569f0964ceaccd3fc
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5-website/+/29819
Reviewed-by: Bobby R. Bruce <bbruce@ucdavis.edu>
Maintainer: Bobby R. Bruce <bbruce@ucdavis.edu>
Tested-by: Bobby R. Bruce <bbruce@ucdavis.edu>
diff --git a/_posts/2020-05-26-gem5art.md b/_posts/2020-05-26-gem5art.md
index ffeb05b..6fa7781 100644
--- a/_posts/2020-05-26-gem5art.md
+++ b/_posts/2020-05-26-gem5art.md
@@ -92,3 +92,7 @@
 The challenge does not only come from the steep learning curve of setting up the experiments, but also Linux kernel and gem5 are being actively developed that makes input parameter space even larger over time.
 Being able to conduct experiments in such a fast changing environment requires a huge amount of effort.
 We believe that gem5art provides a framework and resource for easing the challenge and letting more users to contribute to the gem5 project.
+
+## Workshop Presentation
+
+<iframe width="560" height="315" src="https://www.youtube.com/embed/x2GQa26xwzs" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>