README.md in pumper-1.0.1 vs README.md in pumper-1.2.0

@@ -1,21 +1,31 @@
 [![Build Status](https://travis-ci.org/ssnikolay/pumper.svg?branch=master)](https://travis-ci.org/ssnikolay/pumper)
 
 Pumper
 ======
 
-**Pumper**
+**Pumper** helps quickly update developed gem (e.g. <your_gem>)in dependent project (which uses bundler).
 
+**Pumper** do:
+
+1. Update <your_gem>'s version in Gemfile of project.
+
+2. Remove any old versions of <your_gem>.
+
+3. Install new build of <your_gem>.
+
+Supports install gem to vendor/cache folder and using RVM (see [Options](#options))
+
 ## Installation
 
 Add it to your .gemspec:
 
 ```ruby
 spec.add_development_dependency 'pumper'
 ```
 
-Run the following command to install it:
+And run the following command to install it:
 
 ```sh
 $ bundle install
 ```
 
@@ -25,11 +35,11 @@
 $ gem install pumper
 ```
 
 ## Usage
 
-Basic **Pumper** use:
+For basic usage **Pumper** you need to go to gem folder and run:
 
 + your_gem
     - your_gem.gemspec
     - ...
 + rails_project
@@ -49,20 +59,21 @@
 Successfully installed your_gem-0.0.1
 1 gem installed
 Success bump current gem
 ```
 
-### Options
+### <a name="options"></a> Options
 
  Option                   | Description
 ------------------------- |:-----------------------------------------------------------
- `--project`              | Path to ruby project where need update current gem
+ `--project`              | Path to ruby project where &lt;your_gem> needs update
  `--absolute_path`        | If project path is absolute
- `--gemspec`              | Path to .gemspec (default search in current folder *.gemspec)
  `--gemset`               | Gemset name (if you use RVM)
  `--vendor`               | If project gems stored in the vendor/cache
+ `--config`               | If you want to use special config for updating project
 
+
 Example:
 
 ```sh
 $ pumper --project rails_project --gemset ruby-2.1.0@rails_project --vendor
 =>
@@ -72,5 +83,24 @@
 Successfully uninstalled your_gem-0.0.1
 cp pkg/* /Users/admin/Project/rails_project/vendor/cache && cd /Users/admin/Project/rails_project && rvm ruby-2.1.0@rails_project exec bundle install --local
 Installing your_gem 0.0.1
 Success bump current gem
 ```
+
+#### Config option
+
+For use `--config` option you need to put `.pumper.yml` to &lt;your_gem> folder and write something like this:
+
+```yml
+projects:
+  rails_project:
+    path: /Users/admin/Projects/rails_project
+    absolute_path: true
+    gemset: ruby-2.1.0
+    vendor: true
+```
+
+and run
+
+```sh
+$ pumper --config
+```
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