fix connect func arguments

Author: serzhiio

README.md

@@ -15,7 +15,7 @@ use async_std::net::TcpStream;
 
 let tcp_stream = TcpStream::connect("rust-lang.org:443").await?;
 let connector = TlsConnector::default();
-let handshake = connector::connect("www.rust-lang.org")?;
+let handshake = connector::connect("www.rust-lang.org", tcp_stream)?;
 let mut tls_stream = handshake.await?;
 
 // ...