update changelog and readme

CHANGELOG.md

@@ -28,6 +28,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Support for Netdata on backend : https://server.hostname:22222/netdata/
 - New Stacks : composer and netdata
 - additional argument for letsencrypt : --hsts
+- Theme for adminer
+- Credits for tools shipped with WordOps
 
 #### Changed
 
@@ -41,7 +43,6 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - refactor install script
 - backend SSL configuration now stored in /var/www/22222/conf/nginx/ssl.conf
 
-
 #### Fixed
 
 - PHP 7.3 extras when php 7.2 isn't installed