Wiki is out of data

[gucio321]

Yo, I can see a few things that are out of data on project wiki:

• Widgets part:

Another thing need to mention is the id of a interactable widget (button, InputText, selectable, etc...) should be unique.

To avoid the label becomes hard to read, add "##" in id string, any string after "##" will not be rendered, but still read a id.

For example, "Button##1", will be rendered as "Button". "##Button1" will be rendered as "".

is not necessary anymore

• https://github.com/AllenDang/giu/wiki#multi-thread-handling
• style related part of giu is already present