small update to README.md

README.md

@@ -15,12 +15,26 @@ Configuration example for Keycloak using Docker Compose:
     * enable ssh & web / https security groups
 1b. Add DNS alias 
 2. Install Docker w/ docker-compose
+    * follow [Official Docker Documentation](https://docs.docker.com/engine/install/ubuntu/#set-up-the-repository)
+    * compose plugin:
+```
+ sudo apt-get update
+ sudo apt-get install docker-compose-plugin
+```
 3. Clone Repository
     * `git clone https://gitlab.desy.de/johannes.reppin/keycloak-docker-compose.git`
 4. Change into dir
-5. adjust environment `VIRTUAL_HOST` and `LETSENCRYPT_HOST`
+    * `cd keycloak-docker-compose`
+5. adjust environment
+    * `VIRTUAL_HOST` 
+    * `LETSENCRYPT_HOST`
+    * `KEYCLOAK_ADMIN`
+    * `KEYCLOAK_ADMIN_PASSWORD`
+
 6. start docker-compose
     `docker compose up -d`
+7. visit Keycloak Website 
+    * https://vm-hostname.domain.com
 
 ## Containers
 
@@ -28,4 +42,4 @@ Configuration example for Keycloak using Docker Compose:
     version 20
 * Nginx Proxy 
 * Proxy Companion
-* Postgres
+* Postgres Database