Add container names for webserver and attacker services in Docker Compose

compose.yml

@@ -1,6 +1,7 @@
 services:
   webserver:
     build: docker/apache2
+    container_name: webserver
     ports:
       - 5000:5000
       - 80:80
@@ -9,6 +10,7 @@ services:
       - mynetwork
   attacker:
     build: docker/attacker
+    container_name: attacker
     ports:
       - 5001:5001
     networks: