3.5 usage page

[svlandeg]

WIP

Description

Adding page to the usage section describing 3.5 features and (in)compatibilities

Types of change

docs update

Checklist

• I confirm that I have the right to submit this contribution under the project's MIT license.
• I ran the tests, and all new and existing tests passed.
• My changes don't require a change to the documentation, or if they do, I've added all required information.

[shadeMe]

Let's not forget the fuzzy matcher PR.

[adrianeboyd]

I'll go ahead and merge this after the tests pass so that it's included in the v3.5.0 tag, but there's no problem to continue making edits before it's published on the website.