Avoid lack of update, link to original README.

docs/content/index.md

@@ -1,125 +1 @@
-## Usage
+Please have a look to [README.md](https://github.com/tomav/docker-mailserver/blob/master/README.md)
-
-#### Get latest image
- 
-    docker pull tvial/docker-mailserver:latest
-
-#### Create a `docker-compose.yml`
-
-Adapt this file with your FQDN. Install [docker-compose](https://docs.docker.com/compose/) in the version `1.6` or higher.
-
-```yaml	
-version: '2'
-
-services:
-  mail:
-    image: tvial/docker-mailserver:latest
-    # build: .
-    hostname: mail
-    domainname: domain.com
-    container_name: mail
-    ports:
-      - "25:25"
-      - "143:143"
-      - "587:587"
-      - "993:993"
-    volumes:
-      - maildata:/var/mail
-      - ./config/:/tmp/docker-mailserver/
-
-volumes:
-  maildata:
-    driver: local
-```
-
-#### Create your mail accounts
-
-Don't forget to adapt MAIL_USER and MAIL_PASS to your needs
-
-    mkdir -p config
-    touch config/postfix-accounts.cf
-    docker run --rm \
-      -e MAIL_USER=user1@domain.tld \
-      -e MAIL_PASS=mypassword \
-      -ti tvial/docker-mailserver:latest \
-      /bin/sh -c 'echo "$MAIL_USER|$(doveadm pw -s SHA512-CRYPT -u $MAIL_USER -p $MAIL_PASS)"' >> config/postfix-accounts.cf
-
-#### Generate DKIM keys 
-
-    docker run --rm \
-      -v "$(pwd)/config":/tmp/docker-mailserver \
-      -ti tvial/docker-mailserver:latest generate-dkim-config
-
-Now the keys are generated, you can configure your DNS server by just pasting the content of `config/opendkim/keys/domain.tld/mail.txt` in your `domain.tld.hosts` zone.
-
-#### Start the container
-
-    docker-compose up -d mail
-
-You're done!
-
-## Environment variables
-
-Please check [how the container starts](https://github.com/tomav/docker-mailserver/blob/master/target/start-mailserver.sh) to understand what's expected.
-
-Value in **bold** is the default value.
-
-##### ENABLE_POP3
-
-  - **empty** => POP3 service disabled
-  - 1 => Enables POP3 service
-
-##### ENABLE_FAIL2BAN
-
-  - **empty** => fail2ban service disabled
-  - 1 => Enables fail2ban service
-
-If you enable Fail2Ban, don't forget to add the following lines to your `docker-compose.yml`:
-
-    cap_add:
-      - NET_ADMIN
-
-Otherwise, `iptables` won't be able to ban IPs.
-
-##### ENABLE_MANAGESIEVE
-
-  - **empty** => Managesieve service disabled
-  - 1 => Enables Managesieve on port 4190
-
-##### SA_TAG
-
-  - **2.0** => add spam info headers if at, or above that level
-
-##### SA_TAG2
-
-  - **6.31** => add 'spam detected' headers at that level
-
-##### SA_KILL
-
-  - **6.31** => triggers spam evasive actions
-
-##### SASL_PASSWD
-
-  - **empty** => No sasl_passwd will be created
-  - string => `/etc/postfix/sasl_passwd` will be created with the string as password
-
-##### SMTP_ONLY
-
-  - **empty** => all daemons start
-  - 1 => only launch postfix smtp
-
-##### SSL_TYPE
-
-  - **empty** => SSL disabled
-  - letsencrypt => Enables Let's Encrypt certificates
-  - custom => Enables custom certificates
-  - self-signed => Enables self-signed certificates
-
-Please read [the SSL page in the wiki](https://github.com/tomav/docker-mailserver/wiki/Configure-SSL) for more information.
-
-##### PERMIT_DOCKER
-
-Set different options for mynetworks option (can be overwrite in postfix-main.cf)
-  - **empty** => localhost only
-  - host => Add docker host (ipv4 only)
-  - network => Add all docker containers (ipv4 only)