net: add uds doc alias for unix sockets (#5659)

Author: Darksonn

tokio/src/net/unix/datagram/socket.rs

@@ -91,6 +91,7 @@ cfg_net_unix! {
     /// # Ok(())
     /// # }
     /// ```
+    #[cfg_attr(docsrs, doc(alias = "uds"))]
     pub struct UnixDatagram {
         io: PollEvented<mio::net::UnixDatagram>,
     }

tokio/src/net/unix/listener.rs

@@ -45,6 +45,7 @@ cfg_net_unix! {
     ///     }
     /// }
     /// ```
+    #[cfg_attr(docsrs, doc(alias = "uds"))]
     pub struct UnixListener {
         io: PollEvented<mio::net::UnixListener>,
     }

tokio/src/net/unix/stream.rs

@@ -34,6 +34,7 @@ cfg_net_unix! {
     ///
     /// [`shutdown()`]: fn@crate::io::AsyncWriteExt::shutdown
     /// [`UnixListener::accept`]: crate::net::UnixListener::accept
+    #[cfg_attr(docsrs, doc(alias = "uds"))]
     pub struct UnixStream {
         io: PollEvented<mio::net::UnixStream>,
     }