• Navigate to the settings page
• Select the desired language from the drop-down list
• Press the Ctrl button to select multiple languages
• Click on "Save" to save your language preferences

• Go to the help article listing page
  
• Click on the "Translate" button in front of the article you want to translate
• A pop-up window will appear
• Choose the language you want to translate to from the drop-down menu
• Click on "Translate"
• Review the translated article in draft mode.

 
And Voila! You've successfully translated your help article into another language.