message: Readme. Replace TransportPlain by TransportTcp
diff: @@ -38,7 +38,7 @@ into Rust structures.
  ```rust
  use cdrs::client::CDRS;
  use cdrs::authenticators::NoneAuthenticator;
  -use cdrs::transport::TransportPlain;
  +use cdrs::transport::TransportTcp;
  ```
  After that you can create a new instance of `CDRS` and establish new connection:
  @@ -46,7 +46,7 @@ After that you can create a new instance of `CDRS` and establish new connection:
  ```rust
  let authenticator = NoneAuthenticator;
  let addr = "127.0.0.1:9042";
  -let tcp_transport = TransportPlain::new(addr).unwrap();
  +let tcp_transport = TransportTcp::new(addr).unwrap();
  // pass authenticator and transport into CDRS' constructor
  let client = CDRS::new(tcp_transport, authenticator);
  @@ -65,7 +65,7 @@ To use password authenticator, just include the one implemented in
  ```rust
  use cdrs::client::CDRS;
  use cdrs::authenticators::PasswordAuthenticator;
  -use cdrs::transport::TransportPlain;
  +use cdrs::transport::TransportTcp;
  ```
  After that you can create a new instance of `CDRS` and establish new connection:
  @@ -73,7 +73,7 @@ After that you can create a new instance of `CDRS` and establish new connection:
  ```rust
  let authenticator = PasswordAuthenticator::new("user", "pass");
  let addr = "127.0.0.1:9042";
  -let tcp_transport = TransportPlain::new(addr).unwrap();
  +let tcp_transport = TransportTcp::new(addr).unwrap();
  // pass authenticator and transport into CDRS' constructor
  let client = CDRS::new(tcp_transport, authenticator);
  @@ -134,7 +134,7 @@ use cdrs::connection_manager::ConnectionManager;
  let config = r2d2::Config::builder()
  .pool_size(15)
  .build();
  -let transport = TransportPlain::new(ADDR).unwrap();
  +let transport = TransportTcp::new(ADDR).unwrap();
  let authenticator = PasswordAuthenticator::new(USER, PASS);
  let manager = ConnectionManager::new(transport, authenticator, Compression::None);
  