Why was cmd dir included

[marvinhosea]

Out of curiosity, I would like to know why cmd and main package was included if this is a package/sdk which is meant to be a dependency in other projects.

[changsheng1239]

refer to #21

[unicodeveloper]

Thanks @changsheng1239 . @marvinhosea that's why.

[marvinhosea]

I feel that's not the right how about we move the example to something like example dir.

[unicodeveloper]

@marvinhosea If you are up for it, you can create a PR that has an example dir with all the examples. Will you be open to doing it?