How to change lang=”en” to another language in Shopify

1-  “websitenmae”/admin to login to shopify.

2- Select Themes

3- Goto Actions/Edit languages

4- Press “Change theme language”

5- Change to What you like -> Save -> Save

6- Goto Theme -> Actions -> Edit code

7- Find theme.liquid and replace lang=”en” to lang=”{{ shop.locale }}”

8- Save