README.md in tgbot-0.1.1 vs README.md in tgbot-0.1.2

@@ -1,21 +1,26 @@
-# `Tgbot`
+# Tgbot
 
 [![Gem Version](https://badge.fury.io/rb/tgbot.svg)](https://badge.fury.io/rb/tgbot)
+![Bot API Version](https://img.shields.io/badge/Bot%20API-3.2-blue.svg?style=flat-square)
+![](https://img.shields.io/badge/License-MIT-lightgrey.svg?style=flat-square)
 
 A tiny but easy-to-use wrapper of [Telegram Bot API](https://core.telegram.org/bots/api).
 
 ## Install
 
     gem install tgbot
 
 ## Usage
 
-See [example.rb](example.rb).
+See [example.rb](example.rb) or [usage.md](usage.md).
 
 ## Todo
 
 - improve DSL
+- add sqlite, then
+  + add session
+  + add privilege
 
 ## Contribute
 
 PRs/issues are welcome.