User Story: select language

Feature : select language

As a SNUBot user who are Korean/foreigner. I want to use SNUBot with familiar language. So that I could use SNUBot more conveniently.

Button

• Toggle button

• id: Toggle-language-button
• action: change language option If true then use korean, If flase then use english. Default is true.

Acceptance test:

1: using korean mode

1. at chat page, user can see new Korean button.
2. user type message with Korean
3. user click send button
4. Get Korean reply

2: using english mode

1. at chat page, user can see new Korean button.
2. user click 'Korean' button.
3. 'Korean' button changed to 'English' button.
4. user type message with English
5. user click send button
6. Get English reply