Update plugin.rb

Author: sharpkeen

plugin.rb

@@ -161,7 +161,7 @@ def send_pm(title, text, user)
  PostDestroyer.new(Discourse.system_user, post).destroy
  end
  elsif raw[8, 11] == "code_sample" then
- text = "Hello @" + post.user.username + ", please refer to this topic for posting your code sample. https://forum.codewizardshq.com/t/how-to-post-code-samples/21423/1"
+ text = "Hello @" + post.user.username + ", please refer to this topic for posting your code sample. Thanks. https://forum.codewizardshq.com/t/how-to-post-code-samples/21423/1"
  create_post(post.topic_id, text)
  log_command("received code_sample message", "https://forum.codewizardshq.com/t/#{post.topic_id}", post.user.username)
  elsif raw[8,12] == "project_link" then