To all wiki editors.
The wiki now supports emoji.
https://wiki.jmonkeyengine.org/wiki/emoji.html
It requires the setting of the :stylesheet: attribute in your document header. This is explained in the linked document above.
In the future, I would like to remove this requirement but I do not know the Ruby language so until I know it better (no intention of learning it really) or someone who does know it helps fix this issue,
https://github.com/jMonkeyEngine/wiki/issues/102
we will have to just add the stylesheet attribute to the header.
Edit: Added info for using font awesome in pages.