Update Features section

[Rxbsxn]

Short overview

As a person who is interested in the project, I would like to see the features of the application (or a link to a demo instance) rather than the list of blocks used to build the application.
At the first glance, it's more important to see how the application looks and what offers than the technology stack.

To-Do

• Update “features” section
• Prepare demo video / instance

Deadline

• Just an idea

[PoslinskiNet]

Fully agree