Yaml configuration

[salvo-polizzi]

• Substitute the env variables with a yaml config file
• update requirements
• update README
  closes remove environment variable and replace them using settings.yaml #36

[Helias]

unit tests are failing

[codecov]

Codecov Report

Merging #40 (e03879a) into main (6391763) will decrease coverage by 2.39%.
The diff coverage is 81.81%.

❗ Current head e03879a differs from pull request most recent head bb61c2e. Consider uploading reports for the commit bb61c2e to get more accurate results

@@            Coverage Diff             @@
##             main      #40      +/-   ##
==========================================
- Coverage   96.82%   94.44%   -2.39%     
==========================================
  Files           1        1              
  Lines          63       72       +9     
==========================================
+ Hits           61       68       +7     
- Misses          2        4       +2     

Files	Coverage Δ
src/main.py	94.44% <81.81%> (-2.39%)	⬇️

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