Add minor documentation fixes.

Author: wting

CHANGES.md

@@ -1,5 +1,5 @@
 ## Summary of release changes, see commit history for more details:
-## https://github.com/joelthelion/autojump/commits/master/
+## https://github.com/wting/autojump/commits/master/
 
 ### Release v22.4.0:
 - minor zsh performance improvement

README.md

@@ -79,7 +79,7 @@ autojump is included in the following distro repositories, please use
 relevant package management utilities to install (e.g. yum, apt-get,
 etc):
 
--   Debian testing/unstable, Ubuntu, Linux Mint
+-   Debian, Ubuntu, Linux Mint
 
     All Debian-derived distros require manual activation for policy
     reasons, please see `/usr/share/doc/autojump/README.Debian`.