Corrected minor changes to index.html

[Aju100]

Checklist

• [x] I have read the Contribution & Best practices Guide and my PR follows them.
• [x] There is a corresponding issue for this pull request.
• [x] My branch is up-to-date with the Upstream master branch.
• [x] The unit tests pass locally with my changes (provide a screenshot or link for test)
• [x] I have added tests that prove my fix is effective or that my feature works
• [x] I have added necessary documentation (if appropriate)

Short description of what this resolves:

I have just added and update the changes in index.html

Changes proposed in this pull request: