Fix fiex path

tools/update_containers.sh

@@ -8,17 +8,17 @@ echo "Pulling images"
 echo ""
 
 # pull updated images 
-docker-compose "$docker_compose_files" pull
+docker-compose $docker_compose_files pull
 
 echo "Building images"
 echo ""
 
 # Build new images if neccessary
 if [ "$USE_MUMBLE" == "true" ]; then
-    docker-compose "$mumble_compose_file" build
+    docker-compose $mumble_compose_file build
 fi
 
 if [ "$USE_NOVNC" == "true" ]; then
-    docker-compose "$novnc_compose_file" build 
+    docker-compose $novnc_compose_file build 
 fi