If you are using Ghost(Pro) then yes, that is all there is to it.
If you are self-hosting you need to update your config. You can read more about this here: Twitter embeds in a newsletter - #10 by philipptemmel
If you are using Ghost(Pro) then yes, that is all there is to it.
If you are self-hosting you need to update your config. You can read more about this here: Twitter embeds in a newsletter - #10 by philipptemmel