Move all docs to website (#3139)

* Sync README -> docs/options.md

* Sync README -> docs/*.md

* Misc fixups

* Remove markdown-toc

* Remove insert-pragma from ToC

* Never again!

* Move all docs to ./docs

* Remove yarn toc

* Fix inter-doc links

* Fix links in footer

* Clean up README.md

* Add basic description to README.md

* Use flat badges

* Move editor guides to website

* Improve prettier-ignore docs

* Fixup bad find/replace

* Add JSON to README

* Fix custom parser API link

* Fixup GitHub centering, add downloads badge

* Add 1.8 docs

* docs(website): mention markdown on homepage (#1)

* Add intro

* Add watching-files.md

* Fix markdown syntax highlighting

* Switch back to .md links

scripts/check-deps.js

@@ -0,0 +1,19 @@
+"use strict";
+
+const pkg = require("../package.json");
+const chalk = require("chalk");
+
+validateDependencyObject(pkg.dependencies);
+validateDependencyObject(pkg.devDependencies);
+
+function validateDependencyObject(object) {
+  Object.keys(object).forEach(key => {
+    if (object[key][0] === "^" || object[key][0] === "~") {
+      console.error(
+        chalk.red("error"),
+        `Dependency "${chalk.bold.red(key)}" should be pinned.`
+      );
+      process.exitCode = 1;
+    }
+  });
+}