add more documents

[xueliu]

Hello Xu,

Thanks for your great work.

Can you add more information about how to prepare the lvgl environment ?

I remember that the luavgl library should be a dynamic library (.so file). so lua can find it when local lvgl = require("lvgl"). It it right ?

[XuNeo]

Yes. Currently, luavgl mainly targets for embedded devices, thus no .so file needed. Following the method in simulator, we can simply register lvgl module to lua by calling luaL_requiref.

[xueliu]

The embedded devices means micro controller not embedded Linux device like raspberry pi. Is it right ?

[XuNeo]

Yes. For raspberry pi, the simulator provided can run out of box.

[xueliu]

It is very appreciated for your reply