Update docker-compose.yml

fix mssql version

Author: volkan

docker-compose.yml

@@ -97,7 +97,7 @@ services:
       - rabbitmq
 
   sql.data:
-    image: microsoft/mssql-server-linux:latest
+    image: microsoft/mssql-server-linux:2017-latest
 
   nosql.data:
     image: mongo
@@ -111,4 +111,4 @@ services:
     image: rabbitmq:3-management
     ports:
       - "15672:15672"
-      - "5672:5672"
+      - "5672:5672"