code/lang/js/tools: Add Brangr

[networkimprov]

Description

Add description of the new Brangr open source tool to Code section! Notes:

• Updated: I've fixed the table (previously formatted in Github-flavored markdown) to use HTML.
• Updated: I've added bullets to blurb paragraphs, as the rendered markdown lacks margins between paragraphs.

Preview site - search for Brangr on this page:
https://graphqlgithubiosource81460-networkimprovgraphqlgithubiopa.gatsbyjs.io/code/#javascript

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: networkimprov / name: Liam (5aa8d0c, a22edea, 11a3dbe, fe8a1df, c41d5c2, 4cb347b, 6c0801a)

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[networkimprov]

I've fixed the two issues mentioned in the PR description above.
cc @Urigo

[Urigo]

@networkimprov can you fix prettier?

[networkimprov]

Uri, done - thanks!

FYI the Prettier check didn't run against the first 4 commits on this branch, the latest of which was a week ago.

Btw, an 80-column limit for markdown text seems needlessly narrow, given that most markdown is natural language.

[Urigo]

yes when outside contributors send a PR, I need to manually approve some CI runs, thanks for the patience and sorry for the delay!

[networkimprov]

Thanks for approving this!

Any suggestions for mailing lists or discussion forums where I could mention a new GQL open source project?
So far I've only found the graphql.org Discord server...

[Urigo]

we are trying to keep all community links up to date here: https://graphql.org/community/
if you think there are missing places there, let us know and we'll add these there