SDK Generator Docs

[nxa13122]

The SDK Generator Docs have been uploaded, here is the link SDK Generator Docs.

I have to say that the work is still on-going, 60% done. The outline is set and finished parts are all updated.

There are 4 md files:

SDK Generator Introduction and usage.md:    Introduce the sdk generator and demo you how to install and use it.

Release Actions of SDK Generator.md:        Illustrate the sdk generator release actions.

How to configure release_config file.md:      Illustrate how to config release config yml.

Yml data record guide.md:                 Illustrate how to set ymls. Detailly, how to set ymls for boards/devices/components/applications/component_supports/NPIs/CMSIS pack/manifest, how to set ymls for projects, the configuration, the compilers, etc.

We are still updating it. After all parts are done, I will upload the docs files.