website: Fix hpca event title typo

"HCPA" -> "HPCA"

Change-Id: I5d1a3bd8411c9011cbdd930933dd33efbd236435
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5-website/+/66151
Maintainer: Bobby Bruce <bbruce@ucdavis.edu>
Tested-by: Bobby Bruce <bbruce@ucdavis.edu>
Reviewed-by: Bobby Bruce <bbruce@ucdavis.edu>
diff --git a/_pages/events/hpca-2023.md b/_pages/events/hpca-2023.md
index 698e1ab..c0b86c7 100644
--- a/_pages/events/hpca-2023.md
+++ b/_pages/events/hpca-2023.md
@@ -1,5 +1,5 @@
 ---
-title: "HCPA 2023: gem5 Tutorial"
+title: "HPCA 2023: gem5 Tutorial"
 permalink: events/hpca-2023
 ---