Restore registry-schema redirect with new target (#872)

* Restore registry-schema redirect with new target

Signed-off-by: Dan Barr <6922515+danbarr@users.noreply.github.com>

* Add redirect for deleted page

Signed-off-by: Dan Barr <6922515+danbarr@users.noreply.github.com>

---------

Signed-off-by: Dan Barr <6922515+danbarr@users.noreply.github.com>
Co-authored-by: Dan Barr <6922515+danbarr@users.noreply.github.com>

Author: danbarr

vercel.json

@@ -86,6 +86,16 @@
       "destination": "/toolhive/guides-k8s/deploy-operator",
       "permanent": true
     },
+    {
+      "source": "/toolhive/reference/registry-schema",
+      "destination": "/toolhive/reference/registry-schema-upstream",
+      "permanent": true
+    },
+    {
+      "source": "/toolhive/reference/registry-schema-toolhive",
+      "destination": "/toolhive/reference/registry-schema-upstream",
+      "permanent": true
+    },
     {
       "source": "/toolhive/reference/crd-spec",
       "destination": "/toolhive/reference/crds",