Fixed grammar mistake in home page

[kareemsasa3]

Pull Request Description

On the home page of the website, the left-side header has a typo that should be fixed.
The typo is in the second last title of the list, currently labeled "ADDIONAL TOPICS".
I presume this is supposed to say "ADDITIONAL TOPICS" instead.
This was a really small change, so I figured I would just knock it out.

Sources

Did you include the sources used in creating your contribution?

• Yes
• No

If you answered No to the last question:

Ensuring the quality of content within Data Science Notes is essential such that the collection is reliable. If you didn't utilize any sources for creating your contribution, could you please list your qualifications or add a link to your LinkedIn profile?

Hello! My name is Kareem Sasa. I am an undergraduate computer science major graduating this spring from UTSA.
I found data-science-notes from this list: deepsourcelabs/good-first-issue.
This is my first real attempt at contributing to an open-source project, so any feedback is appreciated!
I hope I can be of some more help than just a grammatical fix in the near future, but I figured this wasn't a bad place to start.
Here is my LinkedIn Profile. Thanks!

Checklist

• If my pull request is a new page, did I add that page to the _toc.yml file?
• Did I star the repo? ⭐️ (starring helps us attract more viewers and contributors!)
• Would I like my contribution to be featured on the @MakeUseofData Twitter account?
• Did I join the Discord

Twitter Username

@tennisantelope

Thank you for your contribution! We look forward to including it in Data Science Notes