quickstart.md in review-4.2.0

- old
+ new

@@ -7,11 +7,11 @@
 
 Re:VIEW is free software under the terms of the GNU Lesser General Public License Version 2.1, so you can use, modify and redistribute it. This license has no relations with your documents using Re:VIEW, so your documents are not forced to use this license. When you want to distribute Re:VIEW software itself or the system including Re:VIEW software, you should read COPYING file carefully.
 
 This article describes how to setup Re:VIEW and use it.
 
-The supported version of the article is Re:VIEW 4.0.
+The supported version of the article is Re:VIEW 4.2.
 
 ## Set up Re:VIEW
 
 Re:VIEW is a software in Ruby and worked in Linux/Unix, macOS, and Windows. You can install Re:VIEW with RubyGems or Git.
 
@@ -221,20 +221,23 @@
 ```
 
 You can also use `review-index` command to generate header list.
 
 ```bash
-$ review-index --level <heading level> -a
+$ review-index --level <heading level>
+$ review-index --level <heading level> -d  ## show volumes also
 ```
 
+review-vol and review-index can have large differences in the number of characters, lines, and pages. While review-vol only estimates from the file, review-index actually compiles and calculates.
+
 ## how to update the document folder to the new Re:VIEW version
 
 Re:VIEW is updated regularly. We Re:VIEW team watch the backward compatibility carefully, but if you want to use the features in the new version, you can use review-update command to update the project folder.
 
 ```bash
 $ review-update
-** review-update updates your project to 4.0.0 **
+** review-update updates your project to 4.1.0 **
 config.yml: Update 'review_version' to '4.0'? [y]/n
 Rakefile will be overridden with Re:VIEW version (/.../review/samples/sample-book/src/Rakefile). Do you really proceed? [y]/n
 lib/tasks/review.rake will be overridden with Re:VIEW version (/.../review/samples/sample-book/src/lib/tasks/review.rake). Do you really proceed? [y]/n
 INFO: new file /.../sty/plistings.sty is created.
 /.../sty/reviewmacro.sty will be overridden with Re:VIEW version (/.../review/templates/latex/review-jsbook/reviewmacro.sty). Do you really proceed? [y]/n
@@ -247,10 +250,10 @@
 Finished.
 ```
 
 ## Copyright
 
-The original author of Re:VIEW is Minero Aoki. The current maintainer is Kenshi Muto(@kmuto), and committers are Masayoshi Takahashi and Masanori Kado (December 2019).
+The original author of Re:VIEW is Minero Aoki. The current maintainer is Kenshi Muto(@kmuto), and committers are Masayoshi Takahashi and Masanori Kado (March 2020).
 
 If you want to report bugs and patches, or to get more information, see:
 
 * http://reviewml.org/
 * https://github.com/kmuto/review/wiki