Headings Styling

[jenstrickland]

In the Table of Contents one can review the major document headings. The capitalization should be consistent across headings.

The heading level 2s (h2) should all be either Title Case or Sentence case. I recommend Title Case, so would recommend changing "2 User need definition" to "2 User Need Definition," "3 Real-Time co-editing" to "3 Real-time Co-editing," and "5 Version control features" to "5 Version Control Features."

Additionally in the heading level 3s (h3) it looks like Sentence case is the norm, so recommend changing "5.2 Presenting Differences Between Revisions" to "5.2 Presenting differences between revisions."

Please note: I would have done pull requests for all of these but the index.html I see in Github doesn't match the content in the page at the url provided in the CFC (https://raw.githack.com/w3c/ctaur/FPWD-2022/index.html).