Update index.md

[LakshmanPalli]

Why:

Closes [issue link]

What's being changed:

Check off the following:

• I have reviewed my changes in staging (look for the latest deployment event in your pull request's timeline, then click View deployment).
• For content changes, I have completed the self-review checklist.

Writer impact (This section is for GitHub staff members only):

• This pull request impacts the contribution experience
  • I have added the 'writer impact' label
  • I have added a description and/or a video demo of the changes below (e.g. a "before and after video")

[welcome]

Thanks for opening this pull request! A GitHub docs team member should be by to give feedback soon. In the meantime, please check out the contributing guidelines.

[LakshmanPalli]

Just in a practice of learning pull requests, made a change in the content, that I think fits the contest.

Thank you 👍

[ramyaparimi]

@LakshmanPalli Thanks so much for opening a PR! I'll get this triaged for review ⚡

[ramyaparimi]

@LakshmanPalli I talked to the team and they pointed out that 'contribution' does not come under the allowed topic list. For more information please checkout this docs ⚡
Take a look at the contributing.md to learn how to contribute in this repo. You can open a discussion if you have any questions or check out issues with the help wanted label. ✨