Document version

Author: technicalguru

README.md

@@ -14,7 +14,7 @@ Related images:
 # Tags
 The following versions are available from DockerHub. The image tag matches the Postfix version.
 
-* [3.5.6.0, 3.5.6, 3.5, 3, latest](https://github.com/technicalguru/docker-mailserver-postfix/tree/v3.5.6.0) - [Dockerfile](https://github.com/technicalguru/docker-mailserver-postfix/blob/3.5.6.0/Dockerfile)
+* [3.5.6.1, 3.5.6, 3.5, 3, latest](https://github.com/technicalguru/docker-mailserver-postfix/tree/v3.5.6.1) - [Dockerfile](https://github.com/technicalguru/docker-mailserver-postfix/blob/3.5.6.1/Dockerfile)
 * [3.4.14.0, 3.4.14, 3.4](https://github.com/technicalguru/docker-mailserver-postfix/tree/v3.4.14.0) - [Dockerfile](https://github.com/technicalguru/docker-mailserver-postfix/blob/3.4.14.0/Dockerfile)
 
 # Features