[feature]: Add more social channels to README and Registration Form

[nehagup]

Is there an existing feature request for this?

• I have searched the existing issues

Summary

Since this website is particularly for student programs, it should contain the all social channels of Keploy where the engagement can happen and the registration link to the program.

Why should this be worked on?

Adds more navigation and community support.

[mukul314]

@nehagup what should I write next to the links....
like - Get connected on linkedin??

[nehagup]

@mukul314 this issue is stale now.