Link fixed in Linux Basic Course

[tusharjain0022]

Related Issue #61

Description: I've fixed the link that was not working properly as specified in the related issue.

Checklist

• [x] I've followed the Contributing guidelines provided in the repository.
• [x] I've made the changes which were demanded in the linked issue.
• [x] I've tested my code on a Chromium based browser.
• [x] I've tested my code on Mozilla Firefox.
• [x] My code gave a clean console on debugging. (no warnings/errors)

Testimonial

NA

[tusharjain0022]

@sumeshpremraj thanks for helping me out , I've made another PR #64 for this .