Hello!
If you want publish your presentation in your blog you have to
make the presentation at the internet, for example, in Drive.
Then when you finish
click in "File", then "Publish to the web..." Click in "Embed" and when you were here, check what you want. When you have all whatever
you want copy the link and paste it in the post in "HTML"
And that's all.
Bye bye! :)
