Update lint-md.js

Author: chalin

gulp-src/lint-md.js

@@ -10,7 +10,7 @@ const defaultGlob = '**/*.md';
 const markdownFiles = [
   '!.github/**',
   '!content-modules/**',
-  '!examples/**',
+  '!examples/go/**',
   '!layouts/**',
   '!node_modules/**',
   '!scripts/registry-scanner/node_modules/**',