Upgrade rust/crates/mio to 0.7.6

Test: make
Change-Id: I26de17b65a22ec1ba472a61c51b55681afdb8ffa

1 files changed, 2 insertions, 1 deletions

diff --git a/README.md b/README.md
index 62ebc47..c8653f8 100644
--- a/README.md
+++ b/README.md
@@ -37,7 +37,8 @@ mio = "0.7"
 ```
 
 Next we can start using Mio. The following is quick introduction using
-`TcpListener` and `TcpStream`. Note that `features = ["os-poll", "tcp"]` must be specified for this example.
+`TcpListener` and `TcpStream`. Note that `features = ["os-poll", "net"]` must be
+specified for this example.
 
 ```rust
 use std::error::Error;