Better explanation in demo

[eklem]

Now:

How to get going:
1. Set up a content endpoint service
Set up a service with JSONbin.io, Sanity.io or Zapier.com.
2. Create bookmarklet
Add a content endpoint you have just created to a bookmarklet.
3. Add bookmarklet to bookmark toolbar
Dragg the bookmarklet button to your browsers bookmark toolbar.
4. Start sending content
When on a page you want to add, just click on the bookmarklet in your bookmark toolbar.

Also, change main call to action from Add content endpoint to Create bookmarklet.