## Description
fixes#4424closes#4424
## Checklist
- [ ] I have linked to any relevant issues.
- [ ] I have commented my code, particularly in hard-to-understand
areas.
- [ ] I have updated the documentation where relevant (API docs, the
reference, and the Sway book).
- [ ] I have added tests that prove my fix is effective or that my
feature works.
- [ ] I have added (or requested a maintainer to add) the necessary
`Breaking*` or `New Feature` labels where relevant.
- [ ] I have done my best to ensure that my PR adheres to [the Fuel Labs
Code Review
Standards](https://github.com/FuelLabs/rfcs/blob/master/text/code-standards/external-contributors.md).
- [ ] I have requested a review from the relevant team or maintainers.
---------
Co-authored-by: Joshua Batty <joshpbatty@gmail.com>
## Description
resolves#2740closes#4157
> In order to give a better highlighting I picked the "meta" scope as
seen in [highlight.js
docs](https://highlightjs.readthedocs.io/en/latest/css-classes-reference.html)
>
> The ["Mode"
](https://highlightjs.readthedocs.io/en/latest/language-guide.html) I've
added provides the html class: _hljs-meta_ however, the result is a
white color for annotation (like plain text) and not a blue color as
requested in the issue.
>
> The solution I've found for this is to add an additional css file to
specify custom behavior for the desired class. I haven't added this file
because I think it's out of scope.
## Checklist
- [✅ ] I have linked to any relevant issues.
- [ ?] I have commented my code, particularly in hard-to-understand
areas.
- [ ?] I have updated the documentation where relevant (API docs, the
reference, and the Sway book).
- [ ?] I have added tests that prove my fix is effective or that my
feature works.
- [✅] I have added (or requested a maintainer to add) the necessary
`Breaking*` or `New Feature` labels where relevant.
- [✅ ] I have done my best to ensure that my PR adheres to [the Fuel
Labs Code Review
Standards](https://github.com/FuelLabs/rfcs/blob/master/text/code-standards/external-contributors.md).
- [ ?] I have requested a review from the relevant team or maintainers.
Co-authored-by: Mohammad Fawaz <mohammadfawaz89@gmail.com>
Add some missing keywords to the `sway.js` file. This was triggered by
@Braqzen noticing some inconsistent highlighting in the generated MD
books.
Doesn't address custom types not being highlighted but that can be for a
future PR.
