Find a way to standarize the configuration file

[alexppg]

Is your feature request related to a problem? Please describe.
The configuration file has some quirks. With the given example:

my-minimal-microservice:
  APP_NAME: "Python Microservice"
  environment: "I'm running in a local machine"
pyms:
  requests:
    data: ""
  metrics: true

• The APP_NAME and the my-minimal-microservice are redundant
• APP_NAME is expected to be in capital letters, but others don't.

Describe the solution you'd like
Something like:

config:
  app_name: "Python Microservice"
  environment: "I'm running in a local machine"
pyms:
  requests:
    data: ""
  metrics: true

There should something that converts the app_name to an usable name, changing spaces by slashes or something like that.

Also, if using capital letters for keys of the configuration makes sense, it should be established somewhere which ones are and why.

Describe alternatives you've considered
NaN

Additional context
NaN

[alexppg]

Ya está hecho, así que cierro x)