Fix language capitalization 4

[Lutymane]

Now language name starts with a capital letter

• I have read freeCodeCamp's contribution guidelines.
• My pull request has a descriptive title (not a vague title like Update index.md)
• My pull request targets the master branch of freeCodeCamp.
• None of my changes are plagiarized from another source without proper attribution.
• All the files I changed are in the same world language (for example: only English changes, or only Chinese changes, etc.)
• My changes do not use shortened URLs or affiliate links.

Closes #XXXXX

[gitpod-io]

[thecodingaviator]

Hi, Please read our Guidelines for Contributing before opening a PR.

We are marking this as invalid and closing for low effort.

Thanks.