Readme updates

README.md

@@ -2,10 +2,7 @@
 
 [![Build Status](https://secure.travis-ci.org/ceoworks/node-transactions.png?branch=master)](http://travis-ci.org/ceoworks/node-transactions)
 [![Coverage Status](https://coveralls.io/repos/ceoworks/node-transactions/badge.svg)](https://coveralls.io/r/ceoworks/node-transactions)
-[![npm](https://img.shields.io/npm/dt/n.svg?style=flat-square)](https://www.npmjs.com/package/node-transactions)
-[![npm](https://img.shields.io/npm/dm/n.svg?style=flat-square)](https://www.npmjs.com/package/node-transactions)
-[![npm](https://img.shields.io/npm/v/n.svg?style=flat-square)](https://www.npmjs.com/package/node-transactions)
-[![npm](https://img.shields.io/npm/l/n.svg?style=flat-square)](https://www.npmjs.com/package/node-transactions)
+[![npm](https://img.shields.io/badge/npm-1.1.1-blue.svg)](https://www.npmjs.com/package/node-transactions)
 
 ## Usage
 Examples of code are shown in ./test/index.spec.js
@@ -15,15 +12,15 @@ In case you are already using `generators-yields` functions - you are completely
 If you are writing classic `async-callback` code - you would probably like to look at `thunkify` package.
 
 ##API
-The first thing you need is the `context` object, which would have all *required* data for tasks execution.
+The first thing you need is the `context` object, which would have all **required** data for tasks execution.
 ```javascript
 let context = {
 	lannisters: false,
 	starks: true
 }
 ```
 
-The main brick of the *`Node Transactions`* module is a `task`:
+The main brick of the **`Node Transactions`** module is a *`task`*:
 ```javascript
 task = {
 	name: 'westeros',
@@ -43,5 +40,11 @@ let result = yield new Transactions([task, nextTask, ...], context);
 3. `result.error` - the first and only `task.perform` error (only if `result.success === false`)
 4. `result.rollbackErrors` - array of possible `task.rollback` errors
 
+To store the intermediate transaction's data, you need to pass into the context your own implementation of storeTransactionState, which would get next args:
+```javascript
+function *storeTransactionState(name, phase, context) { ... }
+context.storeTransactionState = storeTransactionState;
+```
+
 ## Issues
 Any bugs or improvements are appreciated and could be posted at https://github.com/ceoworks/node-transactions/issues