Merge pull request #2111 from asagage/fix-typo-getting-started-remote-builds

Fix typo in getting started remote builds example code

website/source/intro/getting-started/remote-builds.html.markdown

@@ -61,7 +61,7 @@ Now we have Atlas building an AMI with Redis pre-configured. This is great, but
   "variables": ["..."],
   "builders": ["..."],
   "provisioners": ["..."],
-  "push": ["..."]
+  "push": ["..."],
   "post-processors": [
     {
       "type": "atlas",