Fix the size of the Videos in guide

[rajat2502]

I am submitting a -

• [] Bug Report

Describe your bug - The size of the videos should be same by default, but on the Getting Started section of the page

Current behaviour - The size of the videos tags are irregular

Expected behaviour - All the videos should be of the same size

Screenshots (if relevant) -

Are you working on this issue? (Yes/No) No, this issue is for GCI students.

[Roshan13046]

I would like to work on this issue. Can I go ahead?

[chehak123]

I would like to work on this issue