Automated the copyright year

[SulagnaKundu]

Fixes Issue🛠️

Closes #174

Description👨‍💻

Automated the copyright year, so that it need not be changed every year.

Type of change📄

• [x] Bug fix (non-breaking change which fixes an issue)

How this has been tested✅

Ran the website after making necessary changes.

Checklist✅

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

Screenshots/GIF📷

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[Rakesh9100]

Good, Merged 🎉 @SulagnaKundu