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

tools/scripts/lint/linter/index.js

@@ -0,0 +1,25 @@
+const markdownlint = require('markdownlint');
+
+const lintPrism = require('./markdown-prism');
+const lintYAML = require('./markdown-yaml');
+
+function linter(rules) {
+  const lint = (file, next) => {
+    const options = {
+      files: [file.path],
+      config: rules,
+      customRules: [lintYAML, lintPrism]
+    };
+    markdownlint(options, function callback(err, result) {
+      const resultString = (result || '').toString();
+      if (resultString) {
+        process.exitCode = 1;
+        console.log(resultString);
+      }
+      if (next) next(err, file);
+    });
+  };
+  return lint;
+}
+
+module.exports = linter;