Update atoz.md

keep spaces instead of tabs

docs/atoz.md

@@ -279,7 +279,6 @@ Here is the template `config.json` you need to use.
 **Note:** To be [validated json](https://codebeautify.org/jsonvalidator) the below json example should have the `// ...` comments removed. With all comments removed the example is valid json. They are in the example to help explain the options and won't stop wetty from loading if you leave them in place. Lines you do not need can be commented out but should be removed if you want the json to pass validation.
 
 ```
-{
   "ssh": {
         "user": "username", // default user to use when ssh-ing
         "host": "localhost", // Server to ssh to