Align both websites

Author: julienrf

docs/sidebar.yml

@@ -138,6 +138,8 @@ subsection:
         directory: experimental
         index: reference/experimental/overview.md
         subsection:
+          - page: reference/experimental/fewer-braces.md
+            hidden: true
           - page: reference/experimental/canthrow.md
           - page: reference/experimental/erased-defs.md
           - page: reference/experimental/erased-defs-spec.md