Fixed some formatting + German Version.

docs/post_installation/firststeps-disable_ipv6.de.md

@@ -81,3 +81,15 @@ Starten Sie Postfix neu:
 ```
 docker compose restart postfix-mailcow
 ```
+
+**5.** Wenn im Docker Daemon IPv6 komplett deaktiviert ist:
+
+Folgende NGINX, Dovecot und Php-fpm Konfigurationsdateien anpassen
+
+```
+sed -i '/::/d' data/conf/nginx/listen_*
+sed -i '/::/d' data/conf/nginx/templates/listen*
+sed -i 's/,\[::\]//g' data/conf/dovecot/dovecot.conf
+sed -i 's/\[::\]://g' data/conf/nginx/dynmaps.conf
+sed -i 's/\[::\]://g' data/conf/phpfpm/php-fpm.d/pools.conf
+```

docs/post_installation/firststeps-disable_ipv6.en.md

@@ -82,9 +82,9 @@ Restart Postfix:
 docker compose restart postfix-mailcow
 ```
 
-**5.** if your docker daemon completly disable ipv6 
+**5.** If your docker daemon completly disabled IPv6:
 
-fix nginx, dovecot and php-fpm config files too
+Fix the following NGINX, Dovecot and php-fpm config files
 
 ```
 sed -i '/::/d' data/conf/nginx/listen_*