Another small descriptive update

Author: Chris Dickens

index.html

@@ -51,7 +51,7 @@
   <div class="main">
     <h2>Overview</h2>
     <p><b>libusb</b> is a C library that provides generic access to USB devices. It is intended to be used by developers to facilitate the production of applications that communicate with USB hardware.</p>
-    <p>It is <b>portable</b>: Using a single cross-platform API, it provides access to USB devices on Linux, OS&nbsp;X, Windows, Android, OpenBSD, etc.</p>
+    <p>It is <b>portable</b>: Using a single cross-platform API, it provides access to USB devices on Linux, macOS, Windows, etc.</p>
     <p>It is <b>user-mode</b>: No special privilege or elevation is required for the application to communicate with a device.</p>
     <p>It is <b>version-agnostic</b>: All versions of the USB protocol, from 1.0 to 3.1 (latest), are supported.</p>
     <h2>What platforms are supported?</h2>