README.md in Charu-0.0.2 vs README.md in Charu-0.0.3

@@ -20,13 +20,27 @@
 
     $ gem install Charu
 
 ## Usage
 
-TODO: Write usage instructions here
-
+初期化
 ```
 changelogmemo = Charu::ChangeLogMemo.new(file_path)
+```
+
+アイテム取得
+```
+changelogmemo.get_item_sort
+```
+
+アイテム取得逆順
+```
+changelogmemo.get_item_sort_reverse()
+```
+
+カテゴリー取得
+```
+changelogmemo.get_category_list
 ```
 
 ## Development
 
 After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake spec` to run the tests. You can also run `bin/console` for an interactive prompt that will allow you to experiment.