[FEATURE REQUEST] Adding Instagram, LinkedIn links in footer section

## Description

**Is your feature request related to a problem? Please describe.**
I observed that there is no Instagram, LinkedIn links in footer section.

**Describe the solution you'd like**
I'll add Instagram, LinkedIn links in footer section.

## Additional Information

**Context**
By adding those links we can communicate through social media.

**Additional Notes** (optional)
I am SSOC'24 Contributor.
Please assign me this task.