Add short description to README

A short description has been added to the README file. This description pertains to the function of the secure chatbots and the purpose of the app. This clarifies the app's use case for new users or contributors.

README.md

@@ -8,6 +8,7 @@ sdk_version: 4.21.0
 app_file: app.py
 pinned: false
 license: cc-by-nc-sa-4.0
+short_description: Jailbreak the privacy guardrails and vote for the secure chatbot(s)
 tags: [
   "Chatbot Guardrails Arena",
   "Lighthouz AI",