Update api.markdown

Delete token return 204 status code

Author: claudiunicolaa

docs/api.markdown

@@ -106,7 +106,7 @@ A token is a container for requests. You can create as many as you want. They ex
 
 *Response*
 
-`200 No Content`
+`204 No Content`
 
 ## 2 Requests
 
@@ -224,4 +224,4 @@ If no ID, all requests related to the token will be deleted.
 
 *Response*
 
-`204 No content`
+`204 No content`