Create a guide page for creating an event

[arpansac]

We need a page to display how to use the event page, and other features, in the near future.

Once someone chooses the issue, I'll create a basic routed feature-module and you can start working on it.

[arpansac]

Yup, could be for any community event.

I've added a new feature module 'help' at app/feature-modules/help. You can begin working on it.

The design can be inspired from:

• https://developers.sendinblue.com/docs/getting-started
• https://help.videoask.com/hc/en-us

[kanishkaa24]

Do we need to make a webpage as a guide ?