add some examples to the readme

README.md

@@ -28,6 +28,23 @@ sources_root = "/path/to/nextcloud/sources"
 
 See the [configuration section](#configuration) for more options.
 
+### Quick examples
+
+- Start a Nextcloud instance with `postgresql`, `php 8.1` and `s3` primary storage:
+  ```bash
+  haze start pgsq s3
+  ```
+
+- Start a Nextcloud instance with `sqlite`, `php 8.2` and an `smb` external storage:
+  ```bash
+  haze start 8.2 smb
+  ```
+
+- Run specific units test against an `oracle` database
+  ```bash
+  haze test oracle apps/dav/tests/unit/Connector/Sabre
+  ```
+
 ## Managing instances
 
 #### Start an instance