adds YAML to list of automatically highlighted languages for code blocks

[heckj]

extends the list of highlighted languages to include YAML by default

resolves #959

[heckj]

@swift-ci please test

[mportiz08]

I think you'll also need to update this line:

swift-docc-render/src/setup-utils/vue-config-utils.js

Line 66 in 77d966b

const builtinLanguages = 'bash|c|s?css|cpp|diff|http|java|llvm|perl|php|python|ruby|xml|javascript|json|markdown|objectivec|shell|swift';

You can verify that a file with a name like dist/js/highlight-js-yaml-... gets emitted when you run npm run build and ideally test with an example code listing to make sure things are configured right.

Seems like it would be a good addition to default set of supported languages though, thanks!

[heckj]

Thanks Marcus!

Verified it's splatting out the YAML highlighter, from my last nom run build with the updated line:

highlight-js-bash-js.702f0c5c.js          highlight-js-markdown-js.a2f456af.js
highlight-js-c-js.063069d3.js             highlight-js-objectivec-js.74dea052.js
highlight-js-cpp-js.458a9ae4.js           highlight-js-perl-js.da6eda82.js
highlight-js-css-js.bfc4251f.js           highlight-js-php-js.c458ffa4.js
highlight-js-custom-markdown.78c9f6ed.js  highlight-js-python-js.60354774.js
highlight-js-custom-swift.738731d1.js     highlight-js-ruby-js.7272231f.js
highlight-js-diff-js.4db9a783.js          highlight-js-scss-js.adcd11a2.js
highlight-js-http-js.f78e83c2.js          highlight-js-shell-js.0ad5b20f.js
highlight-js-java-js.4fe21e94.js          highlight-js-swift-js.bdd5bff5.js
highlight-js-javascript-js.dfc9d16d.js    highlight-js-xml-js.0d78f903.js
highlight-js-json-js.2a1856ba.js          highlight-js-yaml-js.859e2232.js
highlight-js-llvm-js.26121771.js

[mportiz08]

@swift-ci test