[FEATURE] README Improvements

[Giuulob89]

Is your feature request related to a problem? Please describe.

The current README is good, but still needs improvements in terms of the placement of the information, how much information is provided, and, finally, how the information is being provided.

Describe the solution you'd like

Despite people should read the entire README, this is rare, because normally they are just looking for specific information, so if the project has a better organization we'll provide a better experience too.

Describe alternatives you've considered

• Add a tittle and image related to the project in the beginning;
• Add a Description topic;
• Add a dinamic summary of the topics in README;
• Prerequisites better specified;
• More icons and images to a more dinamic reading;
• Better explanation of some commands;
• Better explanation of user creation in the database postgres;
• Better explanation of non-profit user creation (what are the relevant information?);
• Make better the explanation of what type of user needs to run each command.

Additional context

This issue is a reference of the issue #1167