English Maptalks GL docs

[ShafSpecs]

maptalks's version and what browser you use?

Latest (1.0.33-rc)

Issue description

Could there be an english doc for the usage of the gl (maptalks.gl) package? If also possible, to have types within it for better suggestions

Is there also a simple example of mapbox with maptalks? If possible as a baselayer? I am trying to create a switcher between mapbox and openstreetmap but everything so far doesn't work

[joric]

I'd really love to have FAST opengl markers as bitmap images but the only markers available seem to be GLTF shapes? I'd like vector markers also but I know SVG isn't really suitable for GL, so bitmaps is fine.