There are common conventions for how you lay a script out and present it, which you must ensure that you follow. These are shown in the image below. You can produce the script in Google Docs. and then embed it in your blog as a HTML post or link it to your google slides presentation.
I will give you a paper copy example of a real script from an old TV programme called "Fat Friends", so you can see a real life example.
Use the American typewriter or courier font size 12 as this is a common convention and ensure you align and capitalise type as per the example below and the paper copy in the file I have shared with you from "Fat Friends".