Fix enable_out_of_order_streaming doc example and manganis macro remote example (#3317)

packages/fullstack/src/serve_config.rs

@@ -163,7 +163,7 @@ impl ServeConfigBuilder {
     ///
     /// It is equivalent to calling `streaming_mode(StreamingMode::OutOfOrder)`
     ///
-    /// /// ```rust, no_run
+    /// ```rust, no_run
     /// # use dioxus::prelude::*;
     /// # fn app() -> Element { todo!() }
     /// dioxus::LaunchBuilder::new()