Update README.md

Author: completejavascript

README.md

@@ -1,2 +1,12 @@
-# markdown-editor
+# Markdown Editor
 A very simple but useful Markdown Previewer and Markdown Editor with CodeMirror, Markedjs and Create-react-app
+
+# Preview
+
+  * [Markdown Editor](http://about.phamvanlam.com/markdown-editor/)
+
+# Visit me
+
+  * [Portfolio](http://about.phamvanlam.com)
+  * [Blog Complete JavaScript](https://completejavascript.com)
+  * [Codepen](https://codepen.io/completejavascript)