How do I use Ogioncz's SimpleMDE?

I saw @jtojnar's SimpleMDE Extension but I didn't get how to use it.
Does anyone know?
SimpleMDE Settings

bane

composer require ogioncz/flarum-ext-markdown-editor

then you can read his source code from your install folder (vendor/ogioncz/)

this code has more line than the one in Github, may be he didn't commit the source code.

And the feature you see is not implement yet ?

ganuonglachanh Yes it is mate. I have it on my forum.
GitHub Page
Last Version: 0.8
I just don't know how to use it.

Insert this is the text box and press Save, you can change to other Unicode symbol

[
  {"label": "☎", "insert": "☎"},
  {"label": "❄","insert": "❄"}
]

ganuonglachanh Thank you very much! That's what I wanted to know!