middleware fix

src/middleware.js

@@ -21,8 +21,8 @@ const redirectRules = {
   },
   '/core-candy-machine': {
     '/getting-started': '/core-candy-machine/sdk',
-    'getting-started/js': '/core-candy-machine/sdk/javascript',
-    'getting-started/rust': '/core-candy-machine/sdk/rust',
+    '/getting-started/js': '/core-candy-machine/sdk/javascript',
+    '/getting-started/rust': '/core-candy-machine/sdk/rust',
   },
   '/mpl-hybrid': {
     'guides/mpl-404-hyrbid-ui-template':