Keep track of visited links

[Ayushi-Mohan]

Is your feature request related to a problem? Please describe.
I'm always frustrated when i cant find the links i already visited.

Describe the solution you'd like
A clear and concise description of what you want to happen.
Links to change color for link already visited on the web page.

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.
Change html to keep track of already already visited links and change the color to purple

Additional context
Add any other context or screenshots about the feature request here.

PR

• I am going to make a pull request to add this feature
• I want someone else to make a pull request