[Document] Init README

Author: dnphu

README.md

@@ -0,0 +1,30 @@
+# Lite Express Swagger
+
+## Description
+---
+Lite Express Swagger is a package built by typescript and an open-source project that helps expressjs application to easily build swagger
+documentation.\
+This package provides flexibility and lite functionality to build swagger document and not using the raw json
+to build it.
+
+## Getting started
+---
+Firstly you need to initialize your documentation by defining in this way:
+```javascript
+const document = new DocumentBuilder()
+    .setInfo({
+        title: 'Express application',
+        version: '1.0',
+        // Below fields are optional
+        description: 'Description';
+        termsOfService: 'http://swagger.io/terms/';
+        contact: {
+            name: 'Phu';
+            email: '[email protected]';
+        };
+        license: {
+            name: 'Apache 2.0';
+            url: 'http://www.apache.org/licenses/LICENSE-2.0.html';
+        };
+    })
+```