diff --git a/node/simple-demo/index.js b/node/simple-demo/index.js
new file mode 100644
index 0000000..77e0636
--- /dev/null
+++ b/node/simple-demo/index.js
@@ -0,0 +1,13 @@
+const path = require('path');
+const { readFile } = require('fs');
+const { promisify } = require('util');
+
+const asyncReadFile = promisify(readFile);
+
+const srcFile = path.resolve(__dirname, 'text/hello.md');
+
+(async () => {
+  const txt = await asyncReadFile(srcFile, 'utf8');
+  console.log('path is:', srcFile);
+  console.log('context:', txt);
+})();
\ No newline at end of file
diff --git a/node/simple-demo/text/hello.md b/node/simple-demo/text/hello.md
new file mode 100644
index 0000000..980a0d5
--- /dev/null
+++ b/node/simple-demo/text/hello.md
@@ -0,0 +1 @@
+Hello World!