Integrations are not showing for welcome-apps

Hello there,

I am newbie to Monday.com, I exploring how to develop apps in Monday.com. I follow the tutorial,
monday code quickstart - Get started in <5 mins | Loom
I am to able to deploy and install the app.
I am not seeing anything in integrations sections, what is the settings I may be missing.
this is link I followed
welcome-apps/apps/quickstart-integrations-monday-code at master · mondaycom/welcome-apps · GitHub