website: Fix a copy/paste mistake

Change-Id: I2ec3427c37d9da5f0a5c79898ddeaea5bcdd0c6a
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5-website/+/61452
Maintainer: Bobby Bruce <bbruce@ucdavis.edu>
Tested-by: Bobby Bruce <bbruce@ucdavis.edu>
Reviewed-by: Bobby Bruce <bbruce@ucdavis.edu>
diff --git a/index.html b/index.html
index b931bbf..5c9f682 100755
--- a/index.html
+++ b/index.html
@@ -79,7 +79,7 @@
       <div class="card">
         <div class="fav"><i class="fa fa-youtube"></i></div>
         <div class="card-body">
-          <h5 class="card-title">Contributing</h5>
+          <h5 class="card-title">YouTube</h5>
           <p class="card-text">Learn more about gem5 on our YouTube channel</p>
           <a href="https://www.youtube.com/channel/UCCpCGEj_835WYmbB0g96lZw" class="btn btn-primary">Go to YouTube</a>
         </div>