docs: document the --name option for haze start

README.md

@@ -56,7 +56,7 @@ See the [configuration section](#configuration) for more options.
 #### Start an instance
 
 ```bash
-haze start [database] [php-version] [services] [vX.Y.Z]
+haze start [--name <name>] [database] [php-version] [services] [vX.Y.Z]
 ```
 
 Where `database` is one of `sqlite`, `mysql`, `mariadb`, `pgsql` or `oracle`
@@ -67,6 +67,9 @@ the maximum version support by the current Nextcloud version.
 You can specify a version number (e.g. `v32.0.2`) to use the sources from a
 release instead of using the local sources.
 
+Use `--name <name>` to give the instance a specific name instead of a randomly
+generated one. For example:
+
 Additionally, you can use the following options when starting an instance:
 
 - `s3`: set up an S3 server and configure to Nextcloud to use it as primary