Note about the compatibility between Sciter SDKs

[pravic]

It should be clear that rust-sciter supports both.

[SonnyX]

Including some sciter-js examples would help along to make that clear, would also help explain to the user how to use the bindings to rust now that that view.method_name(args) no longer work, and instead Window.this.xcall("method_name", args) has to be used.

[GirkovArpa]

https://github.com/GirkovArpa/sciter-js-rust-boilerplate

[pravic]

in 58b5a29, for example.