Update Readme

Author: nodkz

README.md

@@ -1,12 +1,33 @@
 graphql-compose-relay
 ======================
-This is a plugin for `graphql-compose`, which wraps graphql types and resolvers with Relay specific things, like `Node` type and interface, `globalId`, `clientMutationId`.
+This is a plugin for `graphql-compose`, which wraps GraphQL types with Relay specific things, like `Node` type and interface, `globalId`, `clientMutationId`.
 
-To-Do
-=====
-- [ ] realize `clientMutationId` for resolvers with `kind = 'mutation'`
-- [ ] realize `globalId` wrapper for Id fields
-- [ ] create `Node` type, interface and type resolver
+
+Example
+=======
+```js
+import composeWithRelay from 'graphql-compose-relay';
+
+composeWithRelay(rootQueryTypeComposer); // add `node` field to RootQuery
+composeWithRelay(userTypeComposer); // wrap Type with middlewares, that add fields and tune resolver.
+composeWithRelay(someOtherTypeComposer);
+```
+That's all!
+- No annoying `clientMutationId` manipulations (declaration, passthru, stripping from input).
+- Add `id` field to type (or wrap it). This field returns globally unique ID among all types in format `base64(TypeName + ':' + recordId)`  
+All done internally by middleware for you.
+
+Requirements
+============
+TypeComposer should follow following requirements:
+- has defined `recordIdFn` (function that from object gives you id)
+- should have `findById` resolver
+
+About `TypeComposer` you may read here [graphql-compose](https://github.com/nodkz/graphql-compose)
+
+Compatible plugins
+==================
+- [graphql-compose-mongoose](https://github.com/nodkz/graphql-compose-mongoose)
 
 
 [CHANGELOG](https://github.com/nodkz/graphql-compose-relay/blob/master/CHANGELOG.md)