Update README to reflect changes of `v10.2.0` (#2234)

Co-authored-by: Brennan Kinney <5098581+polarathene@users.noreply.github.com>
Co-authored-by: Casper <casperklein@users.noreply.github.com>
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Georg Lauterbach 2021-10-03 15:29:44 +02:00 committed by GitHub
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@ -108,17 +108,36 @@ If you're using `docker-mailserver` version `v10.1.x` or below, you will need to
### Get up and running
#### First Things First
**Use `docker-compose up / down`, not `docker-compose start / stop`**. Otherwise, the container is not properly destroyed and you may experience problems during startup because of inconsistent state.
You are able to get a full overview of how the configuration works by either running:
1. `./setup.sh help` which includes the options of `setup.sh`.
2. `docker run --rm docker.io/mailserver/docker-mailserver:latest setup help` which provides you with all the information on configuration provided "inside" the container itself.
#### Starting for the first time
On first start, you will likely see an error stating that there are no mail accounts and the container will exit. You must now do one of two things:
1. Use `setup.sh` to help you: `./setup.sh email add <user@domain> <password>`. You may need the `-c` option to provide the local path for persisting configuration (_a directory that mounts to `/tmp/docker-mailserver` inside the container_). This will spin up a new container, mount your configuration volume, and create your first account.
2. Execute the complete command yourself: `docker run --rm -v "${PWD}/docker-data/dms/config/:/tmp/docker-mailserver/" docker.io/mailserver/docker-mailserver setup email add <user@domain> <password>`. Make sure to mount the correct configuration directory.
You can then proceed by creating the postmaster alias and by creating DKIM keys.
``` BASH
docker-compose up -d mailserver
# for SELinux, use -Z
# you may add some more users
# for SELinux, use -Z
./setup.sh [-Z] email add <user@domain> [<password>]
# and configure aliases, DKIM and more
./setup.sh [-Z] alias add postmaster@<domain> <user@domain>
./setup.sh [-Z] config dkim
```
If you're seeing error messages about unchecked errors, please **verify that you're using the right version of `setup.sh`**. Refer to the [Get the tools](#get-the-tools) section and / or execute `./setup.sh help` and read the `VERSION` section.
In case you're using LDAP, the setup looks a bit different as you do not add user accounts directly. Postfix doesn't know your domain(s) and you need to provide it when configuring DKIM:
``` BASH