In order to create HTML template,
1: Navigate to "Templates" page from left side menu.
2: Click on "New Template" available at right side top.
3: Click on source code "<>" option.
4: Remove existing code and paste your HTML code.
5: After adding your code, click on "create template" .
After completing above steps, your HTML template is ready to use. If you are facing any issue while creating HTML template feel free to reach out to us.