Feedly Add Special Characters Plugin
FAS is a Wordpress plugin to add a special character into our Wordpress post.
Installation
Download the zip of this repository or clone it into your your-wordpress-site/wp-content/plugins folder.
In your admin panel, go to Plugins and activate the plugin.
How to use it
Now, when you go to a post, you can see a new 
button in your editor bar.
Now, just click on "Insert icon" button.
Don't forget to add some style in your editor-style.css