add brief README.md

README.md

@@ -0,0 +1,15 @@
+oauth3.js
+=========
+
+Public utilities for browser and node.js:
+
+* `querystringify(query)`
+* `stringifyscope(scope)`
+
+URL generation:
+
+* `authorizationCode`
+* `authorizationRedirect`
+* `implicitGrant`
+* `loginCode`
+* `resourceOwnerPassword`