I want to specify multiple file types in the TOML format setting of dein.vim Initial departure = final goal

Introducing emmet.vim into vim.

I want to use emmet when editing html and css files

So we knew the existence of dein.vim,
I was able to get to the point where dein.vim worked with reference to.

The above page shows an example configuration file

# Read with specific file type
repo = 'Quramy/tsuquyomi'
on_ft = ['typescript']

It was stated.
Please tell me what happens when I want to load the plug-in for multiple file types such as html and css.