website: Update config.yml with correct URL

Signed-off-by: Jason Lowe-Power <jason@lowepower.com>
Change-Id: I5e2c9bf658472209caf1450f6ef399ea9a14067b
diff --git a/_config.yml b/_config.yml
index e94f98a..4ddaaa5 100755
--- a/_config.yml
+++ b/_config.yml
@@ -1,7 +1,7 @@
 # Site Settings
 title: gem5
 sourceurl: "https://gem5.googlesource.com/public/gem5-website/+/refs/heads/master/README.md"
-url: "https://new.gem5.org/"
+url: "https://www.gem5.org/"
 
 defaults:
   -