Merge pull request #1592 from saxc/fix-macOS

fix macOS spelling

Author: nhooyr

README.md

@@ -39,8 +39,7 @@ Use [sshcode](https://github.com/codercom/sshcode) for a simple setup.
 
 ### Releases
 
-1. [Download a release](https://github.com/cdr/code-server/releases). (Linux and
-   OS X supported. Windows support planned.)
+1. [Download a release](https://github.com/cdr/code-server/releases). (Linux and macOS supported. Windows support planned.)
 2. Unpack the downloaded release then run the included `code-server` script.
 3. In your browser navigate to `localhost:8080`.