Add extractor and builder

Tested and working

config.js

@@ -0,0 +1,18 @@
+module.exports = {
+  // Project metadata
+  name: `30 seconds of CSS`,
+  description: `A curated collection of useful CSS snippets you can understand in 30 seconds or less.`,
+  shortName: `30s`,
+  repositoryUrl: `https://github.com/30-seconds/30-seconds-of-css`,
+  siteUrl: `https://css.30secondsofcode.org`,
+  // Path information
+  snippetPath: `snippets`,
+  snippetDataPath: `snippet_data`,
+  assetPath: `assets`,
+  pagePath: `src/docs/pages`,
+  staticPartsPath: `src/static-parts`,
+  // General information
+  language: `css`,
+  secondLanguage: `html`,
+  optionalLanguage: `js`,
+};