check exit code for building

Author: imeoer

howto/source/How To Deploy a Chat Server with Rocket.chat.md

@@ -53,7 +53,7 @@ d578eb3dc4ee3c2fb8127b2dee1900035f1e2a954eace2182b0471d0254a5802
 [root@localhost]$ hyper run -d --name app --link db:db rocket.chat
 fa18660c1a9ef63da929b62f66417b5d82b3c5c877556417c11f31de4996ba01
 ```
-	
+
 ### 4. Assign floating IP to Rocket.chat container
 
 ``` bash

ink_linux

@@ -5,7 +5,7 @@
   "main": "index.js",
   "scripts": {
     "start": "node server",
-    "build": "NODE_ENV=production webpack --config webpack.config.prod.js --progress --colors && cd howto && ../ink_linux publish && cd .. ; rm -rf dist; mv ./dist_tmp ./dist"
+    "build": "NODE_ENV=production webpack --config webpack.config.prod.js --progress --colors && cd howto && ../ink_linux publish && cd .. && rm -rf dist; mv ./dist_tmp ./dist"
   },
   "repository": {
     "type": "git",