Bump version to 2.13.1 (#1661)

CHANGELOG.md

@@ -1,5 +1,20 @@
 # Changelog
 
+## Version 2.13.1
+
+*January 31, 2023*
+
+* Fix Vagrantfile gem install for ruby >= 2.6 (thanks @Cyb0rk)
+* Disable file watcher in run_build() for sake of qemu on arm64 (thanks @anapsix)
+* Expand deprecated git.io links to full url in docs (thanks @judge2020)
+* Add margin to paragraph following code-block on phones (thanks @tlhunter)
+* Bump nokogiri from 1.13.4 to 1.13.9
+* Bump rouge from 3.28.0 to 3.30.0
+* Bump redcarpet from 3.5.1 to 3.6.0
+* Bump middleman from 4.4.2 to 4.4.3
+* Bump middleman-syntax from 3.2.0 to 3.3.0
+* Bump webrick from 1.7.0 to 1.8.1
+
 ## Version 2.13.0
 
 *April 22, 2022*