Update the copyright with current year automatically

[Subha-5]

Related Issue

• closes #310

Changes you made :

• Using simple javascript, the current year in copyright gets automatically update each time accordingly. - This removes the effort to update the copyright year every time the calender year changes.

Describe the changes :

• This improves the overall experience of the users and viewers.

• Updating the copyright year each time helps the website to stay updated

Check list :

• [X] I have followed code style of this project.
• [X] I have read the CONTRIBUTING document.
• [X] All the aspects mentioned in the issue are covered.
• [X] The website is properly working after my changes.
• [X] 🌟 ed the repo

Type of change :

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

Output Screenshots :

For the year 2022, The next change will be automatically observed in 2023.

[Subha-5]

@Arun9739 please review this pull request for hacktoberfest 2022

[Subha-5]

@Arun9739 I created a new pr and closed an old one to resolve some branch conflicts, so please review this pr

[Subha-5]

@Arun9739 please review this pr for hacktoberfest 2022 and close #310

[Arun9739]

@Subha-5 Good to go LGTM 🌟