Merge pull request #6 from koajs/flow-draw

flow draw to explain how userauth work. fixes #4

.travis.yml

@@ -1,5 +1,7 @@
 language: node_js
 node_js:
+  - "iojs-1"
+  - "0.12"
   - "0.11"
 script: "make test-travis"
-after_script: "npm install coveralls@2.10.0 && cat ./coverage/lcov.info | coveralls"
+after_script: "npm install coveralls@2 && cat ./coverage/lcov.info | coveralls"

Makefile

@@ -13,7 +13,7 @@ jshint: install
 
 test:
 	@NODE_ENV=test ./node_modules/mocha/bin/mocha \
-		--harmony-generators \
+		--harmony \
 		--reporter $(REPORTER) \
 		--timeout $(TIMEOUT) \
 		--require should \

README.md

@@ -97,6 +97,11 @@ we will use [path-match](https://github.com/expressjs/path-match) transfer it to
 5. If login check callback error, next(err).
 6. user visit `$logoutPath`, set `req.session[userField] = null`, and redirect back.
 
+![userauth flow](https://www.lucidchart.com/publicSegments/view/54ede23d-a75c-4690-9408-33a30a008a99/image.png)
+
+> [Source image file](https://www.lucidchart.com/documents/edit/4749f226-b75f-42ef-934f-b89f7bd68c7f?driveId=0ACmMEQjF7GJGUk9PVA)
+
+
 ## License
 
-MIT
+[MIT](LICENSE)