Sylvia: Fix link

Author: jawoznia

src/pages/sylvia/basics/interoperability.mdx

@@ -26,7 +26,7 @@ Execute messages in Sylvia return the
 on which we can call the
 [`add_message`](https://docs.rs/cosmwasm-std/latest/cosmwasm_std/struct.Response.html#method.add_message)
 or
-[`add_messages](https://docs.rs/cosmwasm-std/latest/cosmwasm_std/struct.Response.html#method.add_messages).
+[`add_messages`](https://docs.rs/cosmwasm-std/latest/cosmwasm_std/struct.Response.html#method.add_messages).
 
 ```rust
 #[sv::msg(exec)]