Uploading and displaying images dynamically

Hi everyone. I’m working on my own CMS with Meteor, and I want to integrate images upload to the post editor.

At this moment I can insert text in the post editor with html inputs (Title, subtitle, post) and upload a post thumbnail that is displayed in a defined zone of the page, but I can’t figure out how to integrate the images upload in the post area. If you’ve used post/document editors before, you can write paragraphs and then insert images between them dynamically when you need it.

Any kind of orientation to build this would be great, I’m using CollectionFS.