update READEME.md

README.md

@@ -1,18 +1,44 @@
 # passport-line-token
 Passport strategy for authenticating with Line access tokens using the OAuth 2.0 API.
-
+Based on [Line Social API v2.1](https://developers.line.me/en/docs/social-api/)
 ## Installation
 
     $ npm install passport-line-token
 
 ## Usage
-
-
-
-## Based on
+### Configure Strategy
+```js
+var LineTokenStrategy = require('passport-line-token');
+
+passport.use(new LineTokenStrategy({
+    clientID: LINE_CHANNEL_ID,
+    clientSecret: LINE_CHANNEL_SECRET,
+  }, function(accessToken, refreshToken, profile, done) {
+    User.findOrCreate({lineId: profile.id}, function (error, user) {
+      return done(error, user);
+    });
+  }
+));
+```
+
+Use `passport.authenticate()`, specifying the `'line-token'` strategy, to authenticate requests.
+
+```js
+app.post('/auth/line/token',
+  passport.authenticate('line-token'),
+  function (req, res) {
+    // do something with req.user
+    res.send(req.user? 200 : 401);
+  }
+);
+```
+
+
+## Reference
 
 - [passport-facebook-token](https://github.com/drudge/passport-facebook-token)
-
-## See also
-
 - [passport-line-auth](https://github.com/IvanWei/passport-line-auth) passport line strategy for web server
+- [Line Socail Api](https://developers.line.me/en/docs/social-api/)
+
+## License
+[The MIT License](https://github.com/Ray0427/passport-line-token/blob/master/LICENSE)