Update docker-compose file (#61)

Author: uuf6429

docker-compose.yml

@@ -1,22 +1,20 @@
-version: "3"
-
 services:
-  selenium:
-    image: ${SELENIUM_IMAGE:-selenium/standalone-chrome:4}
-    hostname: selenium
-    shm_size: 4g
-    environment:
-      VNC_NO_PASSWORD: 1
-      SCREEN_WIDTH: 1024
-      SCREEN_HEIGHT: 768
-    volumes:
-      - /dev/shm:/dev/shm
-      - ./vendor/mink/driver-testsuite/web-fixtures:/fixtures
-    ports:
-      - "4444:4444"
-      # VNC Web Viewer port (new images)
-      - "7900:7900"
-      # VNC Server port (old "-debug" images)
-      - "5900:5900"
-    extra_hosts:
-      - host.docker.internal:host-gateway
+    selenium:
+        image: ${SELENIUM_IMAGE:-selenium/standalone-chrome:4}
+        hostname: selenium
+        shm_size: 4g
+        environment:
+            VNC_NO_PASSWORD: 1
+            SCREEN_WIDTH: 1024
+            SCREEN_HEIGHT: 768
+        volumes:
+            - /dev/shm:/dev/shm
+            - ./vendor/mink/driver-testsuite/web-fixtures:/fixtures
+        ports:
+            - "4444:4444"
+            # VNC Web Viewer port (new images)
+            - "7900:7900"
+            # VNC Server port (old "-debug" images)
+            - "5900:5900"
+        extra_hosts:
+            - host.docker.internal:host-gateway