Update spelling of “macOS”

Author: sonicdoe

en/about/index.md

@@ -173,7 +173,7 @@ Ruby has a wealth of other features, among which are the following:
   supports it or not, even on MS-DOS!
 
 * Ruby is highly portable: it is developed mostly on GNU/Linux, but
-  works on many types of UNIX, Mac OS X, Windows, DOS, BeOS, OS/2, etc.
+  works on many types of UNIX, macOS, Windows, DOS, BeOS, OS/2, etc.
 
 ### Other Implementations of Ruby
 

en/documentation/faq/1/index.md

@@ -61,7 +61,7 @@ Ruby features:
 * Iterators and closures,
 * Garbage collection,
 * Dynamic loading (depending on the architecture),
-* High transportability (runs on various Unices, Windows, DOS, OS X, OS/2,
+* High transportability (runs on various Unices, Windows, DOS, macOS, OS/2,
   Amiga, and so on).
 
 ### Show me some Ruby code!

en/documentation/faq/3/index.md

@@ -46,7 +46,7 @@ or [Downloads](/en/downloads/) page.
 {% include faq-out-of-date.html %}
 
 Ruby is developed under Linux, and is written in fairly straightforward C.
-It runs under Linux and other UNIX-like operating systems, Mac OS X,
+It runs under Linux and other UNIX-like operating systems, macOS,
 Windows, DOS, BeOS, Amiga, Acorn Risc OS, and OS/2.
 
 ### Where can I get Ruby sources?

en/documentation/index.md

@@ -143,7 +143,7 @@ Here is a list of popular tools used by Rubyists:
   * [Ruby In Steel][31]
   * [Atom][atom]
 
-* On Mac OS X:
+* On macOS:
   * [TextMate][32]
   * [TextWrangler][33]
   * [Dash][39] (documentation browser)

en/documentation/installation/index.md

@@ -32,7 +32,7 @@ for different needs and platforms.
   * [CentOS, Fedora, RHEL](#yum)
   * [Gentoo](#portage)
   * [Arch Linux](#pacman)
-  * [OS X](#homebrew)
+  * [macOS](#homebrew)
   * [FreeBSD](#freebsd)
   * [Solaris, OpenIndiana](#solaris)
   * [Other Distributions](#other-systems)
@@ -120,12 +120,12 @@ $ sudo pacman -S ruby
 This should install the latest stable Ruby version.
 
 
-### Homebrew (OS X)
+### Homebrew (macOS)
 {: #homebrew}
 
 On macOS (High) Sierra and OS X El Capitan, Ruby 2.0 is included.
 
-Many people on OS X use [Homebrew][homebrew] as a package manager.
+Many people on macOS use [Homebrew][homebrew] as a package manager.
 It is really easy to get a newer version of Ruby using Homebrew:
 
 {% highlight sh %}
@@ -201,7 +201,7 @@ a separate installer, it comes with its own.
 allows you to compile and install different versions of Ruby
 into arbitrary directories.
 ruby-build can also be used as a standalone program without rbenv.
-It is available for OS X, Linux, and other UNIX-like operating systems.
+It is available for macOS, Linux, and other UNIX-like operating systems.
 
 
 ### ruby-install
@@ -211,7 +211,7 @@ It is available for OS X, Linux, and other UNIX-like operating systems.
 versions of Ruby into arbitrary directories.
 There is also a sibling, [chruby](#chruby), which handles switching between
 Ruby versions.
-It is available for OS X, Linux, and other UNIX-like operating systems.
+It is available for macOS, Linux, and other UNIX-like operating systems.
 
 
 ### RubyInstaller
@@ -236,7 +236,7 @@ you can use the following installers:
   It supports OS X and Windows.
 * [Bitnami Ruby Stack][rubystack],
   which provides a complete development environment for Rails.
-  It supports OS X, Linux, Windows, virtual machines, and cloud images.
+  It supports macOS, Linux, Windows, virtual machines, and cloud images.
 
 
 ## Managers
@@ -261,22 +261,22 @@ or even built from source.
 [rbenv][rbenv] allows you to manage multiple installations of Ruby.
 It does not support installing Ruby, but there is a popular plugin
 named [ruby-build](#ruby-build) to install Ruby.
-Both tools are available for OS X, Linux, or other UNIX-like operating systems.
+Both tools are available for macOS, Linux, or other UNIX-like operating systems.
 
 
 ### RVM ("Ruby Version Manager")
 {: #rvm}
 
 [RVM][rvm] allows you to install and manage multiple installations of Ruby
 on your system. It can also manage different gemsets.
-It is available for OS X, Linux, or other UNIX-like operating systems.
+It is available for macOS, Linux, or other UNIX-like operating systems.
 
 
 ### uru
 {: #uru}
 
 [Uru][uru] is a lightweight, multi-platform command line tool that helps you
-to use multiple Rubies on OS X, Linux, or Windows systems.
+to use multiple Rubies on macOS, Linux, or Windows systems.
 
 
 ## Building from Source

en/documentation/quickstart/index.md

@@ -32,7 +32,7 @@ like this is a terrific way to learn the language.
 
 Open up IRB (which stands for Interactive Ruby).
 
-* If you’re using **Mac OS X** open up `Terminal` and type `irb`, then
+* If you’re using **macOS** open up `Terminal` and type `irb`, then
   hit enter.
 * If you’re using **Linux**, open up a shell and type `irb` and hit
   enter.

en/downloads/index.md

@@ -15,7 +15,7 @@ We have several tools on each major platform to install Ruby:
 
 * On Linux/UNIX, you can use the package management system of your
   distribution or third-party tools ([rbenv][rbenv] and [RVM][rvm]).
-* On OS X machines, you can use third-party tools ([rbenv][rbenv] and [RVM][rvm]).
+* On macOS machines, you can use third-party tools ([rbenv][rbenv] and [RVM][rvm]).
 * On Windows machines, you can use [RubyInstaller][rubyinstaller].
 
 See the [Installation][installation] page for details on using