Update Documentation and Add Badges

[KartikeyMish]

Pull Request: ✨ Update Documentation and Add Badges

Description 📝

This PR includes the following changes to the MyLibrary project's documentation:

1. 🛠️ Added a new section on configuring API keys with detailed instructions and emojis for a friendly touch.
2. 🛡️ Updated badges for version, license, GitHub issues, and website status.
3. 🌐 Fixed the live link above the demo video and created a new demo section.

Changes Made 🚀

1. API Key Configuration Section 🧰

Added a new section in the documentation to guide users on how to set up API keys for Google Books and Auth0. The section includes clear instructions and emojis to make it more engaging. 🌟

2. Badge Updates 🛡️

• Updated the version badge to "1.0.0-beta" in a yellow color to reflect the current project version. 🟡
• Updated the license badge to "MIT" in blue to indicate the project's open-source license. 🔵
• Updated the GitHub issues badge to display the number of open issues for better project transparency. 🐛
• Added a website status badge that shows if the project website is online or offline. 🌐

3. Demo Section 📺

• Fixed the live link above the demo video to ensure it directs users to the correct URL. 🎥
• Created a new demo section to provide a better showcase of the MyLibrary project. 🎉

Screenshots 📸

1. API Key Configuration Section

2. Badge Updates

3. Demo Section

Checklist ✅

• [x] API key configuration section added. 🧰
• [x] Updated version badge. 🟡
• [x] Updated license badge. 🔵
• [x] Updated GitHub issues badge. 🐛
• [x] Added website status badge. 🌐
• [x] Fixed live link above the demo video. 🎥
• [x] Created a new demo section. 🎉

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Note: Please review and merge this PR to incorporate the mentioned documentation improvements and updates. The changes aim to enhance the project's accessibility and user experience. 😍

Thank you for your attention and consideration! 😀

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