examples: update outdated example name connect to connect-tcp (#7582)

Signed-off-by: Martin Tzvetanov Grigorov <[email protected]>

Author: martin-g

examples/echo-tcp.rs

@@ -16,7 +16,7 @@
 //!     cargo run --example connect-tcp 127.0.0.1:8080
 //!
 //! Each line you type in to the `connect-tcp` terminal should be echo'd back to
-//! you! If you open up multiple terminals running the `connect` example you
+//! you! If you open up multiple terminals running the `connect-tcp` example you
 //! should be able to see them all make progress simultaneously.
 
 #![warn(rust_2018_idioms)]

examples/tinydb.rs

@@ -19,7 +19,7 @@
 //! is:
 //!
 //!
-//!     $ cargo run --example connect 127.0.0.1:8080
+//!     $ cargo run --example connect-tcp 127.0.0.1:8080
 //!     GET foo
 //!     foo = bar
 //!     GET FOOBAR