Update README.md

Author: damalis

README.md

@@ -118,7 +118,7 @@ docker volume create --driver local --opt type=none --opt device=${DIRECTORY_PAT
 ```
 
 ```
-docker-compose up -d
+docker compose up -d
 ```
 
 then reloading for proxy ssl configuration
@@ -135,7 +135,7 @@ For convenience you may add a new entry into your hosts file.
 
 ```
 docker volume create portainer_data
-docker-compose -f portainer-docker-compose.yml -p portainer up -d 
+docker compose -f portainer-docker-compose.yml -p portainer up -d 
 ```
 
 manage docker with [Portainer](https://www.portainer.io/solutions/docker) is the definitive container management tool for Docker, Docker Swarm with it's highly intuitive GUI and API. 
@@ -159,21 +159,21 @@ docker ps -a
 You can start the containers with the `up` command in daemon mode (by adding `-d` as an argument) or by using the `start` command:
 
 ```
-docker-compose start
+docker compose start
 ```
 
 ### Stopping containers
 
 ```
-docker-compose stop
+docker compose stop
 ```
 
 ### Removing containers
 
 To stop and remove all the containers use the `down` command:
 
 ```
-docker-compose down
+docker compose down
 ```
 
 to remove portainer and the other containers
@@ -184,7 +184,7 @@ docker rm -f $(docker ps -a -q)
 Use `-v` if you need to remove the database volume which is used to persist the database:
 
 ```
-docker-compose down -v
+docker compose down -v
 ```
 
 to remove external certbot-etc and portainer and the other volumes
@@ -200,7 +200,7 @@ Copy all files into a new directory:
 You can now use the `up` command:
 
 ```
-docker-compose up -d
+docker compose up -d
 ```
 
 ### Docker run reference