Update OSX to macOS.

Author: jq-rs

static/index.html

@@ -19,7 +19,7 @@
 <div>
 <img src="images/mles_logo_final.png" alt="Mles logo" width="100" />
 </div>
-<p><b>Mles</b> (<i>Modern Lightweight channEl Service</i>) is a lightweight, robust and authenticated distributed publish-subscribe data service based on Rust (a safe, concurrent and fast systems language), Tokio (asynchronous networking for Rust) and Serde (serialization framework for Rust). It works seamlessly with IPv4 or IPv6 on TCP, which provides its reliable data transfer backbone on Rust supported platforms, including Linux, OSX and Windows.</p>
+<p><b>Mles</b> (<i>Modern Lightweight channEl Service</i>) is a lightweight, robust and authenticated distributed publish-subscribe data service based on Rust (a safe, concurrent and fast systems language), Tokio (asynchronous networking for Rust) and Serde (serialization framework for Rust). It works seamlessly with IPv4 and IPv6 on TCP, which provides its reliable data transfer backbone on Rust supported platforms, including Linux, macOS and Windows.</p>
 
 <h2>Why Mles?</h2>