Add a comprehensive tutorial to show how to build an app with Semaphore

[cedoor]

[ChioGT]

Hi!. I am Rocio, from Ecuador PSE Core Program Group. Can I contribute doing this issue?. Thanks.

[vplasencia]

Hey @ChioGT 👋

Yes, sure. Do you want me to assign the issue to you?

[ChioGT]

Hi @vplasencia !!. Yes, please.

[vplasencia]

Hey @ChioGT! Done ✅

Thanks. Feel free to ask any questions you may have.