Added jock app

[PavanKuppili]

Description

Added a simple joke web app

Checklist

• I've been assigned an issue related to this PR.
• I've used beautifiers.
• I've added my Project's name and description to Index.md
• I've made a README.md file for my Project.
• The README.md file of my projrct contains Project title, Description, Use of project, Set up, Stack used and Output (Screenshots).

Related Issues or Pull Requests number

#934

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Random Joke Generator

A tiny, beautiful Random Joke Generator built with HTML, CSS and a small client-side JavaScript fetch call.

This mini project shows a single-page app that fetches a random joke from the "Official Joke API" and displays it with a simple glassmorphism UI.

Features

• Click a button to fetch and display a random joke (setup + punchline).
• Lightweight: no build tools or server required — just a browser.
• Responsive layout and simple animations.