Merge branch 'progit:master' into patch-2

Author: HonkingGoose

Gemfile

@@ -1,16 +1,16 @@
 source 'https://rubygems.org'
 
 gem 'rake', '13.0.3'
-gem 'asciidoctor', '2.0.12'
+gem 'asciidoctor', '2.0.15'
 
 gem 'json', '2.5.1'
-gem 'awesome_print', '1.8.0'
+gem 'awesome_print', '1.9.2'
 
 gem 'asciidoctor-epub3', '1.5.0.alpha.19'
 gem 'asciidoctor-pdf', '1.5.4'
 
 gem 'coderay', '1.1.3'
-gem 'pygments.rb', '2.1.0'
+gem 'pygments.rb', '2.2.0'
 gem 'thread_safe', '0.3.6'
-gem 'epubcheck-ruby', '4.2.4.0'
-gem 'html-proofer', '3.18.8'
+gem 'epubcheck-ruby', '4.2.5.0'
+gem 'html-proofer', '3.19.0'

book/01-introduction/sections/installing.asc

@@ -51,10 +51,6 @@ A macOS Git installer is maintained and available for download at the Git websit
 .Git macOS Installer
 image::images/git-osx-installer.png[Git macOS installer]
 
-You can also install it as part of the GitHub for macOS install.
-Their GUI Git tool has an option to install command line tools as well.
-You can download that tool from the GitHub for macOS website, at https://desktop.github.com[].
-
 ==== Installing on Windows
 
 There are also a few ways to install Git on Windows.(((Windows, installing)))
@@ -65,12 +61,6 @@ Note that this is a project called Git for Windows, which is separate from Git i
 To get an automated installation you can use the https://chocolatey.org/packages/git[Git Chocolatey package].
 Note that the Chocolatey package is community maintained.
 
-Another easy way to get Git installed is by installing GitHub Desktop.
-The installer includes a command line version of Git as well as the GUI.
-It also works well with PowerShell, and sets up solid credential caching and sane CRLF settings.(((PowerShell)))(((CRLF)))(((credential caching)))
-We'll learn more about those things a little later, but suffice it to say they're things you want.
-You can download this from the https://desktop.github.com[GitHub Desktop website].
-
 ==== Installing from Source
 
 Some people may instead find it useful to install Git from source, because you'll get the most recent version.