Add rust_socketio to README.md

README.md

@@ -1367,6 +1367,8 @@ See also [Are we game yet?](https://arewegameyet.rs)
 * SSH
   * [alexcrichton/ssh2-rs](https://github.com/alexcrichton/ssh2-rs) — [libssh2](https://www.libssh2.org/) bindings [![build badge](https://api.travis-ci.com/alexcrichton/ssh2-rs.svg?branch=master)](https://travis-ci.org/alexcrichton/ssh2-rs)
   * [Thrussh](https://pijul.org/thrussh) [[thrussh](https://crates.io/crates/thrussh)] — an SSH library written from scratch in Rust, backed by [libsodium](https://doc.libsodium.org/)
+* Socket.io
+  * [1c3t3a/rust-socketio](https://github.com/1c3t3a/rust-socketio) [[rust_socketio](https://crates.io/crates/rust_socketio)] — an implementation of a [socket.io](https://socket.io) client written in Rust. [![build badge](https://github.com/1c3t3a/rust-socketio/actions/workflows/build.yml/badge.svg)](https://github.com/1c3t3a/rust-socketio/actions/workflows/build.yml)
 * Stomp
   * [zslayton/stomp-rs](https://github.com/zslayton/stomp-rs) — A [STOMP 1.2](http://stomp.github.io/stomp-specification-1.2.html) client implementation in Rust [![build badge](https://api.travis-ci.org/zslayton/stomp-rs.svg?branch=master)](https://travis-ci.org/zslayton/stomp-rs)
 * uTP