Readme: Exclude irrelevant parts from readme for npm

2 files changed, 5 insertions, 1 deletions

diff --git a/README.adoc b/README.adoc
index 70a4ac9..c34066e 100644
--- a/README.adoc
+++ b/README.adoc
@@ -62,6 +62,7 @@ where “The First Section” is *title* of the section with id _sec1_ in _other
 
 == Installation
 
+ifndef::npm-readme[]
 === Ruby
 
 Install {gem-name} from Rubygems:
@@ -76,6 +77,7 @@ gem install {gem-name} --pre
 
 
 === Node.js
+endif::npm-readme[]
 
 Install {gem-name} from npmjs.com:
 
@@ -85,6 +87,7 @@ npm install --save {gem-name}
 
 == Usage
 
+ifndef::npm-readme[]
 === CLI
 
 If you invoke Asciidoctor from command-line, use option `-r` to load the extension:
@@ -104,6 +107,7 @@ IMPORTANT: Bundler automatically _requires_ all the specified gems.
 
 
 === Node.js
+endif::npm-readme[]
 
 [source, js, subs="+attributes"]
 ----
diff --git a/Rakefile b/Rakefile
index 5866d51..84dcba2 100644
--- a/Rakefile
+++ b/Rakefile
@@ -28,7 +28,7 @@ task :readme2md do
   require 'pandoc-ruby'
 
   docbook = Asciidoctor
-    .load_file('README.adoc', header_footer: true, backend: 'docbook')
+    .load_file('README.adoc', header_footer: true, backend: 'docbook', attributes: 'npm-readme')
     .convert
   markdown = PandocRuby
     .convert(docbook, from: :docbook, to: :markdown_github, 'base-header-level': 2)