[Feature] Better documentation about the library

[luk3skyw4lker]

Description of feature

I think that maybe the lib could use a improvement at the docs, something more clear and descriptive. I could do the work with some help.

Some of the developers of my team are having troubles with the actual docs and could use some help with the upgrade.

[luk3skyw4lker]

The docs could add a section that specifies how the creation of custom children should be, I think this would be pretty helpful.