How to include custom Internal blocks?

Good Day, Thank you for this good job!

**Package supported this Internal blocks:**

Code
Header
Paragraph
Image
SimpleImage
Embed
List
NestedList
Table
Quote
Delimiter
Raw (HTML)

For example i want to use [this](https://github.com/yuanwei92/editorjs-youtube-embed) block, but library not display it.


**Please provide instruction how to add custom ones?**
