Added Book Reading Time Calculator

[sanjanaaa17]

Fixes Issue🛠️

Closes #538

Description👨‍💻

Type of change📄

• [] Bug fix (non-breaking change which fixes an issue)
• [] New feature (non-breaking change which adds functionality)

How this has been tested✅

Checklist✅

• [] My code follows the style guidelines of this project
• [] I have performed a self-review of my own code
• [] I have commented my code, particularly in hard-to-understand areas
• [] I have added demonstration in the form of GIF/video file
• [] I am an Open Source Contributor

Screenshots/GIF📷

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[github-actions]

Hey @hoozierdaddy17, Welcome to the project CalcDiverse! 🎊
Thanks for your contribution! Your effort makes this project better. Keep it up! 🙌
Please wait for the PR to be reviewed. Happy Coding!! ✨

[Rakesh9100]

Why are you opening a new PR, you have to make the commit in the same previous PR only @hoozierdaddy17

I have fixed it for now, pls take care from the next time!!

[sanjanaaa17]

Hi, thanks for being patient with me, as this was my first time trying to contribute to something! Thanks!