simpler deployment docs

Author: krokhale

apps/docs/content/docs/installation.mdx

@@ -27,15 +27,32 @@ Before you start, make sure you have:
 
 Clone the repository and copy the example environment file:
 
+[//]: # (```bash)
+
+[//]: # (git clone git@github.com:kurrier-org/kurrier.git)
+
+[//]: # (cd kurrier/db)
+
+[//]: # (cp example.env .env)
+
+[//]: # (cp -r ./init/volumes/ volumes)
+
+[//]: # (cp -r ./init/dav_config/ dav_config)
+
+[//]: # (cp -r ./init/dav_data/ dav_data)
+
+[//]: # (cp -r ./init/caddy/ caddy)
+
+[//]: # (cp -r ./init/webdav/ webdav)
+
+[//]: # (```)
+
 ```bash
-git clone git@github.com:kurrier-org/kurrier.git
-cd kurrier/db
+git clone --branch deploy --single-branch https://github.com/kurrier-org/kurrier.git kurrier
+cd kurrier
 cp example.env .env
-cp -r ./init/volumes/ volumes
-cp -r ./init/dav_config/ dav_config
-cp -r ./init/dav_data/ dav_data
-cp -r ./init/caddy/ caddy
-cp -r ./init/webdav/ webdav
+cp -r init/* .
+docker compose up -d
 ```
 
 Open the .env file and update your secrets and passwords. You can also use the built-in secrets generator below to create a secure, production-ready passwords and secrets.