update readme

Author: mjhea0

README.md

@@ -33,9 +33,9 @@ Check out the [blog post](https://testdriven.io/concurrent-web-scraping-with-sel
  (env)$ eval $(docker-machine env node-1)
  (env)$ NODE=$(docker service ps --format "{{.Node}}" selenium_hub)
  (env)$ for i in {1..8}; do {
- python project/script.py ${i} $(docker-machine ip $NODE) &
- };
- done
+  python project/script.py ${i} $(docker-machine ip $NODE) &
+  };
+  done
  ```
 
 1. Bring down the resources: