fix fomatting
diff --git a/containers/elk/README.md b/containers/elk/README.md
index a04da86..9c214e7 100644
--- a/containers/elk/README.md
+++ b/containers/elk/README.md
@@ -43,7 +43,7 @@
 
 To build the Loststash-forwarder container
 
-...
+```
 $ cd logstash-forwarder; make build && make run
-...
+```