docs

Signed-off-by: Yoshua Wuyts <yoshuawuyts@gmail.com>

src/stream/mod.rs

@@ -45,5 +45,7 @@ cfg_if! {
         pub use extend::Extend;
         pub use from_stream::FromStream;
         pub use into_stream::IntoStream;
+
+        pub use stream::Merge;
     }
 }

src/stream/stream/mod.rs

@@ -1155,7 +1155,8 @@ extension_trait! {
         #[doc = r#"
             Combines multiple streams into a single stream of all their outputs.
 
-            This macro is only usable inside of async functions, closures, and blocks.
+            Items are yielded as soon as they're received, and the stream continues yield until both
+            streams have been exhausted.
 
             # Examples