Update README.md

Author: arminaaki

README.md

@@ -54,7 +54,7 @@ resource "pastebin_api_user_key" "sample" {
 resource "pastebin_create_paste" "pasteA" {
   name                  = "pasteA"
   api_user_key          = "${pastebin_api_user_key.sample.api_user_key}"
-  api_dev_key           = var.api_dev_key}
+  api_dev_key           = var.api_dev_key
   api_paste_code        = "puts 'Hello World'"
   api_paste_name        = "main.rb"
   api_paste_expire_date = "10M"