fix(lint): re-arrange scripts (#36511)

tools/scripts/lint/linter/markdown-yaml.js

@@ -0,0 +1,24 @@
+const yaml = require('js-yaml');
+
+module.exports = {
+  names: ['yaml-linter'],
+  description: 'YAML code blocks should be valid',
+  tags: ['yaml'],
+  function: function rule(params, onError) {
+    params.tokens
+      .filter(param => param.type === 'fence')
+      .filter(param => param.info === 'yml' || param.info === 'yaml')
+      // TODO since the parser only looks for yml, should we reject yaml blocks?
+      .forEach(codeBlock => {
+        try {
+          yaml.safeLoad(codeBlock.content);
+        } catch (e) {
+          onError({
+            lineNumber: codeBlock.lineNumber,
+            detail: e.message,
+            context: codeBlock.line
+          });
+        }
+      });
+  }
+};