Merge pull request #100 from spurin/master

Update docker-compose.yml

Author: fredsted

docker-compose.yml

@@ -31,7 +31,7 @@ services:
       - LARAVEL_ECHO_SERVER_HOST=0.0.0.0
       - LARAVEL_ECHO_SERVER_PORT=6001
       - ECHO_REDIS_PORT=6379
-      - ECHO_REDIS_HOST=redis
+      - ECHO_REDIS_HOSTNAME=redis
       - ECHO_PROTOCOL=http
       - ECHO_ALLOW_CORS=true
       - ECHO_ALLOW_ORIGIN=*