README.md in sconb-0.0.1 vs README.md in sconb-0.0.2

@@ -2,21 +2,23 @@
 
 Ssh CONfig Buckup tool.
 
 ## Installation
 
-Add this line to your application's Gemfile:
+Install it yourself as:
 
-```ruby
-gem 'sconb'
-```
+    $ gem install sconb
 
-And then execute:
+## Usage
 
-    $ bundle
+    $ sconb
 
-## Usage
+    Commands:
+      sconb dump > dump.json                   # Dump .ssh/config to JSON
+      sconb help [COMMAND]                     # Describe available commands or one specific command
+      sconb keyregen < dump.json               # Regenerate private keys from JSON
+      sconb restore < dump.json > .ssh/config  # Restore .ssh/config from JSON
 
 ### Backup .ssh/config to JSON
 
     $ sconb dump > ssh_config.json
 
@@ -30,12 +32,32 @@
 
 ### Regenerate private keys from JSON
 
     $ sconb keyregen < ssh_config.json
 
+## Advanced Tips
+
+### Select host
+
+Dump github.com config only.
+
+    $ sconb dump | jq '{"github.com"}' > github.json
+
+And append github.com config to .ssh/config
+
+    $ sconb restore < github.json >> ~/.ssh/config
+
+### Merge config
+
+    $ jq -s '.[0] + .[1]' a.json b.json | sconb restore > ~/.ssh/config
+
 ## Contributing
 
 1. Fork it ( https://github.com/[my-github-username]/sconb/fork )
 2. Create your feature branch (`git checkout -b my-new-feature`)
 3. Commit your changes (`git commit -am 'Add some feature'`)
 4. Push to the branch (`git push origin my-new-feature`)
 5. Create a new Pull Request
+
+## TODO
+
+- Make test