From 2b28def2621c55e74298faee6b55e0ceda3fe89a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fabio=20Jos=C3=A9?= <fabiojose@gmail.com>
Date: Fri, 9 Nov 2018 14:18:29 -0200
Subject: [PATCH] Docs: how to use

---
 README.md | 35 ++++++++++++++++++++++++++++++-----
 1 file changed, 30 insertions(+), 5 deletions(-)

diff --git a/README.md b/README.md
index a855602..e2f0720 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,8 @@ Javascript SDK for CloudEvents
 ├── lib
 │   ├── cloudevent.js
 │   ├── jsonformatter.js
+│   ├── format
+│   │   └── json_0_1.js
 │   ├── spec_0_1.js
 │   └── spec_0_2.js
 ├── LICENSE
@@ -19,13 +21,36 @@ Javascript SDK for CloudEvents
 
 ```
 
-* `index.js`: exports the Cloudevent class
+* `index.js`: library exports
 
-* `lib/cloudevent.js`: implementation of Cloudevent class
+* `lib/cloudevent.js`: implementation of Cloudevent, an interface
 
-* `lib/jsonformatter.js`: implementation for JSON formatting [json-format](https://github.com/cloudevents/spec/blob/v0.1/json-format.md)
+* `lib/format/json_0_1.js`: implementation for JSON formatting [version 0.1](https://github.com/cloudevents/spec/blob/v0.1/json-format.md)
 
-* `lib/spec_0_1.js`: implementation for spec version 0.1
+* `lib/spec_0_1.js`: implementation for spec [version 0.1](https://github.com/cloudevents/spec/blob/v0.1/spec.md)
 
-* `lib/spec_0_2.js`: implementation for spec version 0.2
+* `lib/spec_0_2.js`: implementation for spec [version 0.2](https://github.com/cloudevents/spec/blob/master/spec.md)
 
+* `test/cloudevent_spec_0_1.js`: unit testing for spec 0.1
+
+* `test/cloudevent_spec_0_2.js`: unit testing for spec 0.2
+
+# How to use
+
+```js
+
+/* 
+ * Constructs a default instance with:
+ *   - Spec 0.1
+ *   - JSON Format 0.1
+ */
+var cloudevent01 = new Cloudevent();
+
+/*
+ * Constructs an instance with:
+ *   - Spec 0.2
+ *   - JSON Format 0.1 
+ */
+var cloudevent02 = new Cloudevent(Cloudevent.specs['0.2']);
+
+```