chore(docs): allow to use .mdx format in docs

[layershifter]

I made similar thing for SUIR recently, now I want to ship it there and and simplify your life 🐱

Pros

• much simplier format, you can compare how changed Quick Start page, this will simplify editing of doc pages
• formatting will be supported in the next release of Prettier

Cons

• Babel is there again. I couldn't make awesome-typescript-loader or even ts-loader work, it always fails with [at-loader]: Child process failed to process the request: TypeError: Cannot read property 'externalModuleIndicator' of undefined s-panferov/awesome-typescript-loader#561

[codecov]

Codecov Report

Merging #330 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #330   +/-   ##
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  Coverage   91.84%   91.84%           
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  Files          41       41           
  Lines        1337     1337           
  Branches      168      193   +25     
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  Hits         1228     1228           
  Misses        105      105           
  Partials        4        4

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[levithomason]

We need babel to wrap prop types again, strip debug statements from prod builds, and generate handled props. So I think this is inevitable.

I like the idea of easily editable docs. However, we also loose typings / highlighting in doc pages by doing this. In comparing the added dependencies/complexity to use markdown in docs compared to how many doc edits we get, I'm not sure the tradeoff is worth it. I think I'd prefer less deps and a simpler build opposed to easier contributing path. Why? I don't think we'll have that many contributions compared to our own wrangling of the extra code and logic.

Feedback?

[layershifter]

However, we also loose typings / highlighting in doc pages by doing this. In comparing the added dependencies/complexity to use markdown in docs compared to how many doc edits we get, I'm not sure the tradeoff is worth it.

It's not usual markdown, this is mdx format.

Formatting will be support by Prettier in the next release, VSCode has already a plugin (mdx-js/mdx#119), I'm think that Webstorm will support it soon, too.

[hughreeling]

https://www.docz.site/

[layershifter]

MDX support by prettier@1.15 (is not released yet):
https://deploy-preview-5296--prettier.netlify.com/blog/2018/10/00/1.15.0.html
prettier/prettier#4975

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@hughreeling I dont tried Docz, it may be an option.

[layershifter]

I've updated prettier and resolved merge conflicts.

[layershifter]

We will definitely go with a prebuilt solution, most of them support MDX out of the box.