Update version, release notes and homepage

doc/index.page

@@ -97,8 +97,8 @@ extensions that have been made popular by the [PHP Markdown Extra] package and [
 It is probably the fastest pure-Ruby Markdown converter available (January 2019), being about 3x
 faster than [Maruku] and about 6.2x faster than [BlueFeather].
 
-Version **2.3.2**{:itemprop="softwareVersion"} released on
-**2022-03-18**{:itemprop="datePublished"}, [more news](news.html)
+Version **2.4.0**{:itemprop="softwareVersion"} released on
+**2022-04-25**{:itemprop="datePublished"}, [more news](news.html)
 {: style="text-align: center; font-size: 80%"}
 
 </div>

doc/news/release_2_4_0.page

@@ -0,0 +1,27 @@
+---
+title: kramdown 2.4.0 released
+no_output: true
+sort_info: r2040
+created_at: 2022-04-25 14:45:00 +02:00
+modified_at: 2022-04-25 14:45:00 +02:00
+---
+## kramdown 2.4.0 released
+
+A minor release bringing a small enhancement to the kramdown converter and some bug fixes.
+
+## Changes
+
+* 1 minor change:
+
+  - Allow using a different list indentation (pull request [#753] by Carsten Borman)
+
+* 2 bug fixes:
+
+  - Fixed escaping of colon when converting to kramdown (fixes [#751] by Carsten Borman)
+  - Fixed setting highlighter class for code spans in HTML converter when using a default language
+    (fixes [#752] by Aswhin Maroli)
+
+[#751]: https://github.com/gettalong/kramdown/issues/751
+[#752]: https://github.com/gettalong/kramdown/issues/752
+
+[#753]: https://github.com/gettalong/kramdown/pull/753

lib/kramdown/version.rb

@@ -10,6 +10,6 @@
 module Kramdown
 
   # The kramdown version.
-  VERSION = '2.3.2'
+  VERSION = '2.4.0'
 
 end