Trigger gitpubsub with junk commit

According to INFRA-12162, sometimes large commits don't trigger pubsub. This
might trigger it for us.
diff --git a/junk.html b/junk.html
new file mode 100644
index 0000000..f519458
--- /dev/null
+++ b/junk.html
@@ -0,0 +1 @@
+Test junk file to trigger gitpubsub